78618443016 has 64 divisors (see below), whose sum is σ = 198183960000. Its totient is φ = 25988659200.

The previous prime is 78618443009. The next prime is 78618443021. The reversal of 78618443016 is 61034481687.

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, 1395360 + ... + 1450608.

It is an arithmetic number, because the mean of its divisors is an integer number (3096624375).

Almost surely, 2^78618443016 is an apocalyptic number.

It is an amenable number.

78618443016 is an abundant number, since it is smaller than the sum of its proper divisors (119565516984).

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

78618443016 is a wasteful number, since it uses less digits than its factorization.

78618443016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55750 (or 55746 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 78618443016 in words is "seventy-eight billion, six hundred eighteen million, four hundred forty-three thousand, sixteen".