12751401277 has 4 divisors (see below), whose sum is σ = 13422527680. Its totient is φ = 12080274876.

The previous prime is 12751401269. The next prime is 12751401283. The reversal of 12751401277 is 77210415721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77210415721 = 4211 ⋅18335411.

It is a cyclic number.

It is not a de Polignac number, because 12751401277 - 2³ = 12751401269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12751401287) 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, 335563173 + ... + 335563210.

It is an arithmetic number, because the mean of its divisors is an integer number (3355631920).

Almost surely, 2^12751401277 is an apocalyptic number.

It is an amenable number.

12751401277 is a deficient number, since it is larger than the sum of its proper divisors (671126403).

12751401277 is an equidigital number, since it uses as much as digits as its factorization.

12751401277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671126402.

The product of its (nonzero) digits is 27440, while the sum is 37.

Adding to 12751401277 its reverse (77210415721), we get a palindrome (89961816998).

The spelling of 12751401277 in words is "twelve billion, seven hundred fifty-one million, four hundred one thousand, two hundred seventy-seven".