78907336755 has 32 divisors (see below), whose sum is σ = 136355353344. Its totient is φ = 38734705536.

The previous prime is 78907336723. The next prime is 78907336759. The reversal of 78907336755 is 55763370987.

It is not a de Polignac number, because 78907336755 - 2⁵ = 78907336723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78907336759) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 515409 + ... + 650738.

It is an arithmetic number, because the mean of its divisors is an integer number (4261104792).

Almost surely, 2^78907336755 is an apocalyptic number.

78907336755 is a deficient number, since it is larger than the sum of its proper divisors (57448016589).

78907336755 is a wasteful number, since it uses less digits than its factorization.

78907336755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166515.

The product of its (nonzero) digits is 33339600, while the sum is 60.

The spelling of 78907336755 in words is "seventy-eight billion, nine hundred seven million, three hundred thirty-six thousand, seven hundred fifty-five".