38856397587 has 32 divisors (see below), whose sum is σ = 60117457920. Its totient is φ = 21864245760.

The previous prime is 38856397529. The next prime is 38856397607. The reversal of 38856397587 is 78579365883.

It is not a de Polignac number, because 38856397587 - 2⁶ = 38856397523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38856397787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 947239 + ... + 987407.

It is an arithmetic number, because the mean of its divisors is an integer number (1878670560).

Almost surely, 2^38856397587 is an apocalyptic number.

38856397587 is a deficient number, since it is larger than the sum of its proper divisors (21261060333).

38856397587 is a wasteful number, since it uses less digits than its factorization.

38856397587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40883.

The product of its digits is 304819200, while the sum is 69.

The spelling of 38856397587 in words is "thirty-eight billion, eight hundred fifty-six million, three hundred ninety-seven thousand, five hundred eighty-seven".