11918575826 has 16 divisors (see below), whose sum is σ = 18544235424. Its totient is φ = 5740961184.

The previous prime is 11918575819. The next prime is 11918575831. The reversal of 11918575826 is 62857581911.

It is a super-2 number, since 2×11918575826² (a number of 21 digits) contains 22 as substring.

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, 942956 + ... + 955511.

It is an arithmetic number, because the mean of its divisors is an integer number (1159014714).

Almost surely, 2^11918575826 is an apocalyptic number.

11918575826 is a deficient number, since it is larger than the sum of its proper divisors (6625659598).

11918575826 is a wasteful number, since it uses less digits than its factorization.

11918575826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898585.

The product of its digits is 1209600, while the sum is 53.

The spelling of 11918575826 in words is "eleven billion, nine hundred eighteen million, five hundred seventy-five thousand, eight hundred twenty-six".