13128368618 has 16 divisors (see below), whose sum is σ = 20010049920. Its totient is φ = 6458782176.

The previous prime is 13128368597. The next prime is 13128368629. The reversal of 13128368618 is 81686382131.

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, 46130 + ... + 168477.

It is an arithmetic number, because the mean of its divisors is an integer number (1250628120).

Almost surely, 2^13128368618 is an apocalyptic number.

13128368618 is a deficient number, since it is larger than the sum of its proper divisors (6881681302).

13128368618 is a wasteful number, since it uses less digits than its factorization.

13128368618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215101.

The product of its digits is 331776, while the sum is 47.

The spelling of 13128368618 in words is "thirteen billion, one hundred twenty-eight million, three hundred sixty-eight thousand, six hundred eighteen".