11538939792 has 20 divisors (see below), whose sum is σ = 29808927920. Its totient is φ = 3846313248.

The previous prime is 11538939787. The next prime is 11538939817. The reversal of 11538939792 is 29793983511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120197242 + ... + 120197337.

It is an arithmetic number, because the mean of its divisors is an integer number (1490446396).

Almost surely, 2^11538939792 is an apocalyptic number.

11538939792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11538939792 is an abundant number, since it is smaller than the sum of its proper divisors (18269988128).

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

11538939792 is a wasteful number, since it uses less digits than its factorization.

11538939792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240394590 (or 240394584 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 57.

The spelling of 11538939792 in words is "eleven billion, five hundred thirty-eight million, nine hundred thirty-nine thousand, seven hundred ninety-two".