11638135756 has 12 divisors (see below), whose sum is σ = 21933409792. Its totient is φ = 5371447248.

The previous prime is 11638135739. The next prime is 11638135777. The reversal of 11638135756 is 65753183611.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111905100 + ... + 111905203.

Almost surely, 2^11638135756 is an apocalyptic number.

It is an amenable number.

11638135756 is a deficient number, since it is larger than the sum of its proper divisors (10295274036).

11638135756 is a wasteful number, since it uses less digits than its factorization.

11638135756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223810320 (or 223810318 counting only the distinct ones).

The product of its digits is 453600, while the sum is 46.

The spelling of 11638135756 in words is "eleven billion, six hundred thirty-eight million, one hundred thirty-five thousand, seven hundred fifty-six".