77811113704 has 8 divisors (see below), whose sum is σ = 145895838210. Its totient is φ = 38905556848.

The previous prime is 77811113663. The next prime is 77811113711. The reversal of 77811113704 is 40731111877.

It can be written as a sum of positive squares in only one way, i.e., 53315733604 + 24495380100 = 230902^2 + 156510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×77811113704³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4863194599 + ... + 4863194614.

Almost surely, 2^77811113704 is an apocalyptic number.

It is an amenable number.

77811113704 is a deficient number, since it is larger than the sum of its proper divisors (68084724506).

77811113704 is a wasteful number, since it uses less digits than its factorization.

77811113704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9726389219 (or 9726389215 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 40.

The spelling of 77811113704 in words is "seventy-seven billion, eight hundred eleven million, one hundred thirteen thousand, seven hundred four".