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68189059133280 = 25335192241397457
BaseRepresentation
bin11111000000100100000001…
…01001011010111101100000
322221102210212202212222201000
433200102000221122331200
532414202143114231110
6401005342111512000
720235332311163241
oct1740220051327540
9287383782788630
1068189059133280
111a7aa8aa217428
1277935b5b28600
132c0827bb9c787
1412ba521dbacc8
157d3b496ce1c0
hex3e0480a5af60

68189059133280 has 1152 divisors, whose sum is σ = 254121074444160. Its totient is φ = 17074573148160.

The previous prime is 68189059133207. The next prime is 68189059133317. The reversal of 68189059133280 is 8233195098186.

68189059133280 is a `hidden beast` number, since 6 + 8 + 1 + 8 + 9 + 0 + 591 + 3 + 32 + 8 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 149210194812 + ... + 149210195268.

It is an arithmetic number, because the mean of its divisors is an integer number (220591210455).

Almost surely, 268189059133280 is an apocalyptic number.

68189059133280 is a gapful number since it is divisible by the number (60) 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 68189059133280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127060537222080).

68189059133280 is an abundant number, since it is smaller than the sum of its proper divisors (185932015310880).

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

68189059133280 is a wasteful number, since it uses less digits than its factorization.

68189059133280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 63.

The spelling of 68189059133280 in words is "sixty-eight trillion, one hundred eighty-nine billion, fifty-nine million, one hundred thirty-three thousand, two hundred eighty".