11577217077 has 12 divisors (see below), whose sum is σ = 16751636460. Its totient is φ = 7704764928.

The previous prime is 11577217063. The next prime is 11577217079. The reversal of 11577217077 is 77071277511.

11577217077 is a `hidden beast` number, since 1 + 1 + 577 + 2 + 1 + 7 + 0 + 77 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7895033316 + 3682183761 = 88854^2 + 60681^2 .

It is not a de Polignac number, because 11577217077 - 2²⁷ = 11442999349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11577217079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1109502 + ... + 1119887.

It is an arithmetic number, because the mean of its divisors is an integer number (1395969705).

Almost surely, 2^11577217077 is an apocalyptic number.

It is an amenable number.

11577217077 is a deficient number, since it is larger than the sum of its proper divisors (5174419383).

11577217077 is a wasteful number, since it uses less digits than its factorization.

11577217077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229972 (or 2229969 counting only the distinct ones).

The product of its (nonzero) digits is 168070, while the sum is 45.

The spelling of 11577217077 in words is "eleven billion, five hundred seventy-seven million, two hundred seventeen thousand, seventy-seven".