12911744618 has 16 divisors (see below), whose sum is σ = 19715135616. Its totient is φ = 6340724880.

The previous prime is 12911744603. The next prime is 12911744639. The reversal of 12911744618 is 81644711921.

12911744618 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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, 135521 + ... + 210212.

It is an arithmetic number, because the mean of its divisors is an integer number (1232195976).

Almost surely, 2^12911744618 is an apocalyptic number.

12911744618 is a deficient number, since it is larger than the sum of its proper divisors (6803390998).

12911744618 is a wasteful number, since it uses less digits than its factorization.

12911744618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346069.

The product of its digits is 96768, while the sum is 44.

The spelling of 12911744618 in words is "twelve billion, nine hundred eleven million, seven hundred forty-four thousand, six hundred eighteen".