78368931404 has 6 divisors (see below), whose sum is σ = 137145629964. Its totient is φ = 39184465700.

The previous prime is 78368931383. The next prime is 78368931451. The reversal of 78368931404 is 40413986387.

It is a super-2 number, since 2×78368931404² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9796116422 + ... + 9796116429.

It is an arithmetic number, because the mean of its divisors is an integer number (22857604994).

Almost surely, 2^78368931404 is an apocalyptic number.

It is an amenable number.

78368931404 is a deficient number, since it is larger than the sum of its proper divisors (58776698560).

78368931404 is a wasteful number, since it uses less digits than its factorization.

78368931404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19592232855 (or 19592232853 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 78368931404 in words is "seventy-eight billion, three hundred sixty-eight million, nine hundred thirty-one thousand, four hundred four".