38678880643842 has 16 divisors (see below), whose sum is σ = 77357946375072. Its totient is φ = 12892929366720.

The previous prime is 38678880643829. The next prime is 38678880643853. The reversal of 38678880643842 is 24834608887683.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4917384 + ... + 10076627.

It is an arithmetic number, because the mean of its divisors is an integer number (4834871648442).

Almost surely, 2^{38678880643842} is an apocalyptic number.

38678880643842 is an abundant number, since it is smaller than the sum of its proper divisors (38679065731230).

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

38678880643842 is a wasteful number, since it uses less digits than its factorization.

38678880643842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15423953.

The product of its (nonzero) digits is 2378170368, while the sum is 75.

The spelling of 38678880643842 in words is "thirty-eight trillion, six hundred seventy-eight billion, eight hundred eighty million, six hundred forty-three thousand, eight hundred forty-two".