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68582198647488 = 26317471812469931
BaseRepresentation
bin11111001100000000010011…
…00101101001101011000000
322222211101122100020120102110
433212000021211221223000
532442122320323204423
6401510121020015320
720305620550003041
oct1746001145515300
9288741570216373
1068582198647488
111a941602225259
127837833691540
132c363730a2066
1412d1578d7c8c8
157ddea8b6b193
hex3e6009969ac0

68582198647488 has 224 divisors, whose sum is σ = 197303068505088. Its totient is φ = 20941844889600.

The previous prime is 68582198647483. The next prime is 68582198647513. The reversal of 68582198647488 is 88474689128586.

It is a self number, because there is not a number n which added to its sum of digits gives 68582198647488.

It is not an unprimeable number, because it can be changed into a prime (68582198647483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26531883 + ... + 29001813.

It is an arithmetic number, because the mean of its divisors is an integer number (880817270112).

Almost surely, 268582198647488 is an apocalyptic number.

68582198647488 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68582198647488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98651534252544).

68582198647488 is an abundant number, since it is smaller than the sum of its proper divisors (128720869857600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68582198647488 is a wasteful number, since it uses less digits than its factorization.

68582198647488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470191 (or 2470181 counting only the distinct ones).

The product of its digits is 11890851840, while the sum is 84.

The spelling of 68582198647488 in words is "sixty-eight trillion, five hundred eighty-two billion, one hundred ninety-eight million, six hundred forty-seven thousand, four hundred eighty-eight".