12956766018 has 32 divisors (see below), whose sum is σ = 29624349696. Its totient is φ = 3700822608.

The previous prime is 12956766013. The next prime is 12956766029. The reversal of 12956766018 is 81066765921.

It is not an unprimeable number, because it can be changed into a prime (12956766013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100905 + ... + 189987.

It is an arithmetic number, because the mean of its divisors is an integer number (925760928).

Almost surely, 2^12956766018 is an apocalyptic number.

12956766018 is an abundant number, since it is smaller than the sum of its proper divisors (16667583678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12956766018 is a wasteful number, since it uses less digits than its factorization.

12956766018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92558.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 12956766018 in words is "twelve billion, nine hundred fifty-six million, seven hundred sixty-six thousand, eighteen".