11387879836 has 12 divisors (see below), whose sum is σ = 19929635712. Its totient is φ = 5693698208.

The previous prime is 11387879801. The next prime is 11387879851. The reversal of 11387879836 is 63897878311.

It is a congruent number.

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, 83856 + ... + 172648.

It is an arithmetic number, because the mean of its divisors is an integer number (1660802976).

Almost surely, 2^11387879836 is an apocalyptic number.

It is an amenable number.

11387879836 is a deficient number, since it is larger than the sum of its proper divisors (8541755876).

11387879836 is a wasteful number, since it uses less digits than its factorization.

11387879836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120860 (or 120858 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 61.

The spelling of 11387879836 in words is "eleven billion, three hundred eighty-seven million, eight hundred seventy-nine thousand, eight hundred thirty-six".