11515948634 has 16 divisors (see below), whose sum is σ = 17894181120. Its totient is φ = 5552534880.

The previous prime is 11515948607. The next prime is 11515948657. The reversal of 11515948634 is 43684951511.

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, 310619 + ... + 345710.

It is an arithmetic number, because the mean of its divisors is an integer number (1118386320).

Almost surely, 2^11515948634 is an apocalyptic number.

11515948634 is a deficient number, since it is larger than the sum of its proper divisors (6378232486).

11515948634 is a wasteful number, since it uses less digits than its factorization.

11515948634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656645.

The product of its digits is 518400, while the sum is 47.

The spelling of 11515948634 in words is "eleven billion, five hundred fifteen million, nine hundred forty-eight thousand, six hundred thirty-four".