78887827590564 has 48 divisors (see below), whose sum is σ = 190419704838720. Its totient is φ = 25389077804160.

The previous prime is 78887827590553. The next prime is 78887827590581. The reversal of 78887827590564 is 46509572878887.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140354334 + ... + 140915274.

It is an arithmetic number, because the mean of its divisors is an integer number (3967077184140).

Almost surely, 2^{78887827590564} is an apocalyptic number.

It is an amenable number.

78887827590564 is an abundant number, since it is smaller than the sum of its proper divisors (111531877248156).

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

78887827590564 is a wasteful number, since it uses less digits than its factorization.

78887827590564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965100 (or 965098 counting only the distinct ones).

The product of its (nonzero) digits is 15173222400, while the sum is 84.

The spelling of 78887827590564 in words is "seventy-eight trillion, eight hundred eighty-seven billion, eight hundred twenty-seven million, five hundred ninety thousand, five hundred sixty-four".