115636781132 has 24 divisors (see below), whose sum is σ = 214282499760. Its totient is φ = 54413665280.

The previous prime is 115636781107. The next prime is 115636781153. The reversal of 115636781132 is 231187636511.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1154219 + ... + 1250397.

It is an arithmetic number, because the mean of its divisors is an integer number (8928437490).

Almost surely, 2^115636781132 is an apocalyptic number.

It is an amenable number.

115636781132 is a deficient number, since it is larger than the sum of its proper divisors (98645718628).

115636781132 is a wasteful number, since it uses less digits than its factorization.

115636781132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113881 (or 113879 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The spelling of 115636781132 in words is "one hundred fifteen billion, six hundred thirty-six million, seven hundred eighty-one thousand, one hundred thirty-two".