77136707048 has 16 divisors (see below), whose sum is σ = 146122371780. Its totient is φ = 38170741248.

The previous prime is 77136707047. The next prime is 77136707057. The reversal of 77136707048 is 84070763177.

It can be written as a sum of positive squares in 2 ways, for example, as 74792404324 + 2344302724 = 273482^2 + 48418^2 .

It is a junction number, because it is equal to n+sod(n) for n = 77136706987 and 77136707005.

It is not an unprimeable number, because it can be changed into a prime (77136707047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49700711 + ... + 49702262.

Almost surely, 2^77136707048 is an apocalyptic number.

It is an amenable number.

77136707048 is a deficient number, since it is larger than the sum of its proper divisors (68985664732).

77136707048 is a wasteful number, since it uses less digits than its factorization.

77136707048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99403076 (or 99403072 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 50.

The spelling of 77136707048 in words is "seventy-seven billion, one hundred thirty-six million, seven hundred seven thousand, forty-eight".