78637360620 has 96 divisors (see below), whose sum is σ = 270996461568. Its totient is φ = 16591617792.

The previous prime is 78637360619. The next prime is 78637360727. The reversal of 78637360620 is 2606373687.

It is a self number, because there is not a number n which added to its sum of digits gives 78637360620.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7195764 + ... + 7206683.

It is an arithmetic number, because the mean of its divisors is an integer number (2822879808).

Almost surely, 2^78637360620 is an apocalyptic number.

78637360620 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78637360620 is an abundant number, since it is smaller than the sum of its proper divisors (192359100948).

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

78637360620 is a wasteful number, since it uses less digits than its factorization.

78637360620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14402479 (or 14402477 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 48.

The spelling of 78637360620 in words is "seventy-eight billion, six hundred thirty-seven million, three hundred sixty thousand, six hundred twenty".