78914818580 has 48 divisors (see below), whose sum is σ = 179209574544. Its totient is φ = 29016852480.

The previous prime is 78914818547. The next prime is 78914818597. The reversal of 78914818580 is 8581841987.

It can be written as a sum of positive squares in 8 ways, for example, as 4388002564 + 74526816016 = 66242^2 + 272996^2 .

It is a congruent number.

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, 567047 + ... + 692366.

It is an arithmetic number, because the mean of its divisors is an integer number (3733532803).

Almost surely, 2^78914818580 is an apocalyptic number.

It is an amenable number.

78914818580 is an abundant number, since it is smaller than the sum of its proper divisors (100294755964).

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

78914818580 is a wasteful number, since it uses less digits than its factorization.

78914818580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259676 (or 1259674 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 59.

The spelling of 78914818580 in words is "seventy-eight billion, nine hundred fourteen million, eight hundred eighteen thousand, five hundred eighty".