38031559956 has 144 divisors (see below), whose sum is σ = 105470780688. Its totient is φ = 11483596800.

The previous prime is 38031559939. The next prime is 38031559991. The reversal of 38031559956 is 65995513083.

It is a happy number.

38031559956 is a `hidden beast` number, since 3 + 8 + 0 + 31 + 559 + 9 + 56 = 666.

38031559956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 13674963600 + 24356596356 = 116940^2 + 156066^2 .

It is a congruent number.

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, 14872230 + ... + 14874786.

It is an arithmetic number, because the mean of its divisors is an integer number (732435977).

Almost surely, 2^38031559956 is an apocalyptic number.

38031559956 is a gapful number since it is divisible by the number (36) 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 38031559956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52735390344).

38031559956 is an abundant number, since it is smaller than the sum of its proper divisors (67439220732).

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

38031559956 is a wasteful number, since it uses less digits than its factorization.

38031559956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162 (or 3157 counting only the distinct ones).

The product of its (nonzero) digits is 4374000, while the sum is 54.

The spelling of 38031559956 in words is "thirty-eight billion, thirty-one million, five hundred fifty-nine thousand, nine hundred fifty-six".