11889661926 has 16 divisors (see below), whose sum is σ = 25178107824. Its totient is φ = 3730089984.

The previous prime is 11889661907. The next prime is 11889661963. The reversal of 11889661926 is 62916698811.

It is a congruent number.

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, 58282555 + ... + 58282758.

It is an arithmetic number, because the mean of its divisors is an integer number (1573631739).

Almost surely, 2^11889661926 is an apocalyptic number.

11889661926 is an abundant number, since it is smaller than the sum of its proper divisors (13288445898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11889661926 is a wasteful number, since it uses less digits than its factorization.

11889661926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116565335.

The product of its digits is 2239488, while the sum is 57.

The spelling of 11889661926 in words is "eleven billion, eight hundred eighty-nine million, six hundred sixty-one thousand, nine hundred twenty-six".