78510784712836 has 48 divisors (see below), whose sum is σ = 159366854126592. Its totient is φ = 33144928740000.

The previous prime is 78510784712819. The next prime is 78510784712869. The reversal of 78510784712836 is 63821748701587.

78510784712836 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (67).

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, 259207521 + ... + 259510231.

It is an arithmetic number, because the mean of its divisors is an integer number (3320142794304).

Almost surely, 2^{78510784712836} is an apocalyptic number.

It is an amenable number.

78510784712836 is an abundant number, since it is smaller than the sum of its proper divisors (80856069413756).

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

78510784712836 is a wasteful number, since it uses less digits than its factorization.

78510784712836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441040 (or 441038 counting only the distinct ones).

The product of its (nonzero) digits is 126443520, while the sum is 67.

The spelling of 78510784712836 in words is "seventy-eight trillion, five hundred ten billion, seven hundred eighty-four million, seven hundred twelve thousand, eight hundred thirty-six".