12373908817536 has 512 divisors, whose sum is σ = 42303006720000. Its totient is φ = 3487571582976.

The previous prime is 12373908817531. The next prime is 12373908817553. The reversal of 12373908817536 is 63571880937321.

12373908817536 is a `hidden beast` number, since 1 + 2 + 3 + 7 + 3 + 9 + 0 + 88 + 17 + 536 = 666.

It is a super-2 number, since 2×12373908817536² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (12373908817531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2979508836 + ... + 2979512988.

It is an arithmetic number, because the mean of its divisors is an integer number (82623060000).

Almost surely, 2^{12373908817536} is an apocalyptic number.

12373908817536 is a gapful number since it is divisible by the number (16) 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 12373908817536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21151503360000).

12373908817536 is an abundant number, since it is smaller than the sum of its proper divisors (29929097902464).

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

12373908817536 is a wasteful number, since it uses less digits than its factorization.

12373908817536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5821 (or 5803 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 12373908817536 in words is "twelve trillion, three hundred seventy-three billion, nine hundred eight million, eight hundred seventeen thousand, five hundred thirty-six".