38985525824 has 84 divisors (see below), whose sum is σ = 91004219820. Its totient is φ = 16520232960.

The previous prime is 38985525809. The next prime is 38985525869. The reversal of 38985525824 is 42852558983.

It can be written as a sum of positive squares in 2 ways, for example, as 5800345600 + 33185180224 = 76160^2 + 182168^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209264 + ... + 348944.

Almost surely, 2^38985525824 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 38985525824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45502109910).

38985525824 is an abundant number, since it is smaller than the sum of its proper divisors (52018693996).

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

38985525824 is a wasteful number, since it uses less digits than its factorization.

38985525824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139796 (or 139779 counting only the distinct ones).

The product of its digits is 27648000, while the sum is 59.

The spelling of 38985525824 in words is "thirty-eight billion, nine hundred eighty-five million, five hundred twenty-five thousand, eight hundred twenty-four".