38685523968 has 720 divisors, whose sum is σ = 145768586880. Its totient is φ = 9873653760.

The previous prime is 38685523939. The next prime is 38685524063. The reversal of 38685523968 is 86932558683.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1247920113 + ... + 1247920143.

Almost surely, 2^38685523968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38685523968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72884293440).

38685523968 is an abundant number, since it is smaller than the sum of its proper divisors (107083062912).

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

38685523968 is an equidigital number, since it uses as much as digits as its factorization.

38685523968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 56 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 63.

The spelling of 38685523968 in words is "thirty-eight billion, six hundred eighty-five million, five hundred twenty-three thousand, nine hundred sixty-eight".