115577279964 has 18 divisors (see below), whose sum is σ = 292153680000. Its totient is φ = 38525759976.

The previous prime is 115577279933. The next prime is 115577279969. The reversal of 115577279964 is 469972775511.

115577279964 is a `hidden beast` number, since 1 + 1 + 557 + 7 + 2 + 79 + 9 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115577279969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1605239964 + ... + 1605240035.

It is an arithmetic number, because the mean of its divisors is an integer number (16230760000).

Almost surely, 2^115577279964 is an apocalyptic number.

It is an amenable number.

115577279964 is an abundant number, since it is smaller than the sum of its proper divisors (176576400036).

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

115577279964 is a wasteful number, since it uses less digits than its factorization.

115577279964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210480009 (or 3210480004 counting only the distinct ones).

The product of its digits is 33339600, while the sum is 63.

The spelling of 115577279964 in words is "one hundred fifteen billion, five hundred seventy-seven million, two hundred seventy-nine thousand, nine hundred sixty-four".