11839693618 has 24 divisors (see below), whose sum is σ = 18199074816. Its totient is φ = 5776490160.

The previous prime is 11839693511. The next prime is 11839693661. The reversal of 11839693618 is 81639693811.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 938871 + ... + 951397.

It is an arithmetic number, because the mean of its divisors is an integer number (758294784).

Almost surely, 2^11839693618 is an apocalyptic number.

11839693618 is a deficient number, since it is larger than the sum of its proper divisors (6359381198).

11839693618 is a wasteful number, since it uses less digits than its factorization.

11839693618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12778 (or 12717 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 55.

The spelling of 11839693618 in words is "eleven billion, eight hundred thirty-nine million, six hundred ninety-three thousand, six hundred eighteen".