77717168364 has 48 divisors (see below), whose sum is σ = 197878576896. Its totient is φ = 23544340800.

The previous prime is 77717168311. The next prime is 77717168471. The reversal of 77717168364 is 46386171777.

It is a super-4 number, since 4×77717168364⁴ (a number of 45 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427329 + ... + 581415.

It is an arithmetic number, because the mean of its divisors is an integer number (4122470352).

Almost surely, 2^77717168364 is an apocalyptic number.

It is an amenable number.

77717168364 is an abundant number, since it is smaller than the sum of its proper divisors (120161408532).

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

77717168364 is a wasteful number, since it uses less digits than its factorization.

77717168364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157926 (or 157924 counting only the distinct ones).

The product of its digits is 8297856, while the sum is 57.

The spelling of 77717168364 in words is "seventy-seven billion, seven hundred seventeen million, one hundred sixty-eight thousand, three hundred sixty-four".