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80609126400 = 2113552111931
BaseRepresentation
bin100101100010010101…
…1011010100000000000
321201001210021220100000
41023010223122200000
52310041414021100
6101010433200000
75552366161215
oct1130453324000
9251053256300
1080609126400
1131205828830
1213757a00000
1377a83a773a
143c89a19b0c
15216bbe0900
hex12c4ada800

80609126400 has 1728 divisors, whose sum is σ = 354877286400. Its totient is φ = 17915904000.

The previous prime is 80609126387. The next prime is 80609126407. The reversal of 80609126400 is 462190608.

80609126400 is a `hidden beast` number, since 8 + 0 + 6 + 0 + 9 + 1 + 2 + 640 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (80609126407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2600294385 + ... + 2600294415.

It is an arithmetic number, because the mean of its divisors is an integer number (205368800).

Almost surely, 280609126400 is an apocalyptic number.

80609126400 is a gapful number since it is divisible by the number (80) 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 80609126400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177438643200).

80609126400 is an abundant number, since it is smaller than the sum of its proper divisors (274268160000).

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

80609126400 is a wasteful number, since it uses less digits than its factorization.

80609126400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 80609126400 in words is "eighty billion, six hundred nine million, one hundred twenty-six thousand, four hundred".