11638570904 has 16 divisors (see below), whose sum is σ = 21823635600. Its totient is φ = 5818934752.

The previous prime is 11638570861. The next prime is 11638570907. The reversal of 11638570904 is 40907583611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11638570907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145109 + ... + 210555.

It is an arithmetic number, because the mean of its divisors is an integer number (1363977225).

Almost surely, 2^11638570904 is an apocalyptic number.

It is an amenable number.

11638570904 is a deficient number, since it is larger than the sum of its proper divisors (10185064696).

11638570904 is a wasteful number, since it uses less digits than its factorization.

11638570904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87682 (or 87678 counting only the distinct ones).

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

The spelling of 11638570904 in words is "eleven billion, six hundred thirty-eight million, five hundred seventy thousand, nine hundred four".