12751402765 has 16 divisors (see below), whose sum is σ = 15646767408. Its totient is φ = 9972458496.

The previous prime is 12751402733. The next prime is 12751402771. The reversal of 12751402765 is 56720415721.

It can be written as a sum of positive squares in 8 ways, for example, as 142134084 + 12609268681 = 11922^2 + 112291^2 .

It is a cyclic number.

It is not a de Polignac number, because 12751402765 - 2⁵ = 12751402733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13452 + ... + 160261.

It is an arithmetic number, because the mean of its divisors is an integer number (977922963).

Almost surely, 2^12751402765 is an apocalyptic number.

It is an amenable number.

12751402765 is a deficient number, since it is larger than the sum of its proper divisors (2895364643).

12751402765 is a wasteful number, since it uses less digits than its factorization.

12751402765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174048.

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 12751402765 in words is "twelve billion, seven hundred fifty-one million, four hundred two thousand, seven hundred sixty-five".