12918950618 has 8 divisors (see below), whose sum is σ = 22146772512. Its totient is φ = 5536693116.

The previous prime is 12918950617. The next prime is 12918950623. The reversal of 12918950618 is 81605981921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12918950617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461391080 + ... + 461391107.

It is an arithmetic number, because the mean of its divisors is an integer number (2768346564).

Almost surely, 2^12918950618 is an apocalyptic number.

12918950618 is a deficient number, since it is larger than the sum of its proper divisors (9227821894).

12918950618 is an equidigital number, since it uses as much as digits as its factorization.

12918950618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922782196.

The product of its (nonzero) digits is 311040, while the sum is 50.

The spelling of 12918950618 in words is "twelve billion, nine hundred eighteen million, nine hundred fifty thousand, six hundred eighteen".