12751915572 has 108 divisors (see below), whose sum is σ = 35667250528. Its totient is φ = 3838428000.

The previous prime is 12751915549. The next prime is 12751915601. The reversal of 12751915572 is 27551915721.

12751915572 is a `hidden beast` number, since 1 + 2 + 7 + 5 + 1 + 91 + 557 + 2 = 666.

It is a super-2 number, since 2×12751915572² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 648063 + ... + 667449.

Almost surely, 2^12751915572 is an apocalyptic number.

12751915572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12751915572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17833625264).

12751915572 is an abundant number, since it is smaller than the sum of its proper divisors (22915334956).

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

12751915572 is a wasteful number, since it uses less digits than its factorization.

12751915572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19570 (or 19554 counting only the distinct ones).

The product of its digits is 220500, while the sum is 45.

The spelling of 12751915572 in words is "twelve billion, seven hundred fifty-one million, nine hundred fifteen thousand, five hundred seventy-two".