78311334264 has 16 divisors (see below), whose sum is σ = 195778335720. Its totient is φ = 26103778080.

The previous prime is 78311334253. The next prime is 78311334301. The reversal of 78311334264 is 46243311387.

It is a super-2 number, since 2×78311334264² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631486107 + ... + 1631486154.

Almost surely, 2^78311334264 is an apocalyptic number.

It is an amenable number.

78311334264 is an abundant number, since it is smaller than the sum of its proper divisors (117467001456).

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

78311334264 is a wasteful number, since it uses less digits than its factorization.

78311334264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262972270 (or 3262972266 counting only the distinct ones).

The product of its digits is 290304, while the sum is 42.

The spelling of 78311334264 in words is "seventy-eight billion, three hundred eleven million, three hundred thirty-four thousand, two hundred sixty-four".