78407412366 has 64 divisors (see below), whose sum is σ = 167522976000. Its totient is φ = 24392814336.

The previous prime is 78407412337. The next prime is 78407412373. The reversal of 78407412366 is 66321470487.

It is a happy number.

It is a super-2 number, since 2×78407412366² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 7875960 + ... + 7885908.

It is an arithmetic number, because the mean of its divisors is an integer number (2617546500).

Almost surely, 2^78407412366 is an apocalyptic number.

78407412366 is an abundant number, since it is smaller than the sum of its proper divisors (89115563634).

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

78407412366 is a wasteful number, since it uses less digits than its factorization.

78407412366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10993.

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 78407412366 in words is "seventy-eight billion, four hundred seven million, four hundred twelve thousand, three hundred sixty-six".