78692984312 has 16 divisors (see below), whose sum is σ = 147574080360. Its totient is φ = 39339896224.

The previous prime is 78692984299. The next prime is 78692984327. The reversal of 78692984312 is 21348929687.

It is a happy number.

It is a super-2 number, since 2×78692984312² (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 3 ways as a sum of consecutive naturals, for example, 773603 + ... + 869394.

Almost surely, 2^78692984312 is an apocalyptic number.

It is an amenable number.

78692984312 is a deficient number, since it is larger than the sum of its proper divisors (68881096048).

78692984312 is a wasteful number, since it uses less digits than its factorization.

78692984312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648990 (or 1648986 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 59.

The spelling of 78692984312 in words is "seventy-eight billion, six hundred ninety-two million, nine hundred eighty-four thousand, three hundred twelve".