11944003618 has 16 divisors (see below), whose sum is σ = 18633200256. Its totient is φ = 5737490640.

The previous prime is 11944003607. The next prime is 11944003651. The reversal of 11944003618 is 81630044911.

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, 1133146 + ... + 1143637.

It is an arithmetic number, because the mean of its divisors is an integer number (1164575016).

Almost surely, 2^11944003618 is an apocalyptic number.

11944003618 is a deficient number, since it is larger than the sum of its proper divisors (6689196638).

11944003618 is a wasteful number, since it uses less digits than its factorization.

11944003618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276889.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 11944003618 in words is "eleven billion, nine hundred forty-four million, three thousand, six hundred eighteen".