78938656567252 has 12 divisors (see below), whose sum is σ = 144148851122976. Its totient is φ = 37753270532120.

The previous prime is 78938656567181. The next prime is 78938656567297. The reversal of 78938656567252 is 25276565683987.

It is a congruent number.

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, 429014437774 + ... + 429014437957.

It is an arithmetic number, because the mean of its divisors is an integer number (12012404260248).

Almost surely, 2^{78938656567252} is an apocalyptic number.

It is an amenable number.

78938656567252 is a deficient number, since it is larger than the sum of its proper divisors (65210194555724).

78938656567252 is a wasteful number, since it uses less digits than its factorization.

78938656567252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858028875758 (or 858028875756 counting only the distinct ones).

The product of its digits is 9144576000, while the sum is 79.

The spelling of 78938656567252 in words is "seventy-eight trillion, nine hundred thirty-eight billion, six hundred fifty-six million, five hundred sixty-seven thousand, two hundred fifty-two".