12751618128 has 80 divisors (see below), whose sum is σ = 35621648640. Its totient is φ = 3915378688.

The previous prime is 12751618127. The next prime is 12751618129. The reversal of 12751618128 is 82181615721.

It is an interprime number because it is at equal distance from previous prime (12751618127) and next prime (12751618129).

It is a self number, because there is not a number n which added to its sum of digits gives 12751618128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12751618127) 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, 127893 + ... + 204596.

It is an arithmetic number, because the mean of its divisors is an integer number (445270608).

Almost surely, 2^12751618128 is an apocalyptic number.

It is an amenable number.

12751618128 is an abundant number, since it is smaller than the sum of its proper divisors (22870030512).

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

12751618128 is a wasteful number, since it uses less digits than its factorization.

12751618128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332564 (or 332558 counting only the distinct ones).

The product of its digits is 53760, while the sum is 42.

The spelling of 12751618128 in words is "twelve billion, seven hundred fifty-one million, six hundred eighteen thousand, one hundred twenty-eight".