78795721352 has 16 divisors (see below), whose sum is σ = 147857510400. Its totient is φ = 39367051920.

The previous prime is 78795721307. The next prime is 78795721369. The reversal of 78795721352 is 25312759787.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3840224 + ... + 3860687.

It is an arithmetic number, because the mean of its divisors is an integer number (9241094400).

Almost surely, 2^78795721352 is an apocalyptic number.

It is an amenable number.

78795721352 is a deficient number, since it is larger than the sum of its proper divisors (69061789048).

78795721352 is a wasteful number, since it uses less digits than its factorization.

78795721352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7702196 (or 7702192 counting only the distinct ones).

The product of its digits is 7408800, while the sum is 56.

The spelling of 78795721352 in words is "seventy-eight billion, seven hundred ninety-five million, seven hundred twenty-one thousand, three hundred fifty-two".