77399613315216 has 40 divisors (see below), whose sum is σ = 222165556739360. Its totient is φ = 25799871104928.

The previous prime is 77399613315197. The next prime is 77399613315239. The reversal of 77399613315216 is 61251331699377.

It is a happy number.

77399613315216 is a `hidden beast` number, since 7 + 7 + 3 + 9 + 9 + 613 + 3 + 1 + 5 + 2 + 1 + 6 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89582885350 + ... + 89582886213.

It is an arithmetic number, because the mean of its divisors is an integer number (5554138918484).

Almost surely, 2^{77399613315216} is an apocalyptic number.

It is an amenable number.

77399613315216 is an abundant number, since it is smaller than the sum of its proper divisors (144765943424144).

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

77399613315216 is a wasteful number, since it uses less digits than its factorization.

77399613315216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179165771580 (or 179165771568 counting only the distinct ones).

The product of its digits is 38578680, while the sum is 63.

The spelling of 77399613315216 in words is "seventy-seven trillion, three hundred ninety-nine billion, six hundred thirteen million, three hundred fifteen thousand, two hundred sixteen".