38638863787338 has 24 divisors (see below), whose sum is σ = 85980174375108. Its totient is φ = 12531523390272.

The previous prime is 38638863787309. The next prime is 38638863787417. The reversal of 38638863787338 is 83378736883683.

38638863787338 is a `hidden beast` number, since 3 + 86 + 3 + 88 + 63 + 78 + 7 + 338 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 32077463707809 + 6561400079529 = 5663697^2 + 2561523^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29008155331 + ... + 29008156662.

Almost surely, 2^{38638863787338} is an apocalyptic number.

38638863787338 is an abundant number, since it is smaller than the sum of its proper divisors (47341310587770).

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

38638863787338 is a wasteful number, since it uses less digits than its factorization.

38638863787338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58016312038 (or 58016312035 counting only the distinct ones).

The product of its digits is 14046068736, while the sum is 81.

The spelling of 38638863787338 in words is "thirty-eight trillion, six hundred thirty-eight billion, eight hundred sixty-three million, seven hundred eighty-seven thousand, three hundred thirty-eight".