77377110164 has 6 divisors (see below), whose sum is σ = 135409942794. Its totient is φ = 38688555080.

The previous prime is 77377110113. The next prime is 77377110179. The reversal of 77377110164 is 46101177377.

It can be written as a sum of positive squares in only one way, i.e., 74229002500 + 3148107664 = 272450^2 + 56108^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9672138767 + ... + 9672138774.

It is an arithmetic number, because the mean of its divisors is an integer number (22568323799).

Almost surely, 2^77377110164 is an apocalyptic number.

It is an amenable number.

77377110164 is a deficient number, since it is larger than the sum of its proper divisors (58032832630).

77377110164 is a wasteful number, since it uses less digits than its factorization.

77377110164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19344277545 (or 19344277543 counting only the distinct ones).

The product of its (nonzero) digits is 172872, while the sum is 44.

The spelling of 77377110164 in words is "seventy-seven billion, three hundred seventy-seven million, one hundred ten thousand, one hundred sixty-four".