115636987475 has 12 divisors (see below), whose sum is σ = 143394590016. Its totient is φ = 92506541280.

The previous prime is 115636987471. The next prime is 115636987559. The reversal of 115636987475 is 574789636511.

It is a happy number.

It is not a de Polignac number, because 115636987475 - 2² = 115636987471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115636987471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 990014 + ... + 1100636.

It is an arithmetic number, because the mean of its divisors is an integer number (11949549168).

Almost surely, 2^115636987475 is an apocalyptic number.

115636987475 is a deficient number, since it is larger than the sum of its proper divisors (27757602541).

115636987475 is a wasteful number, since it uses less digits than its factorization.

115636987475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152446 (or 152441 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 62.

The spelling of 115636987475 in words is "one hundred fifteen billion, six hundred thirty-six million, nine hundred eighty-seven thousand, four hundred seventy-five".