12751915511 has 2 divisors, whose sum is σ = 12751915512. Its totient is φ = 12751915510.

The previous prime is 12751915481. The next prime is 12751915523. The reversal of 12751915511 is 11551915721.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12751915511 is a prime.

It is a super-2 number, since 2×12751915511² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12751915711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6375957755 + 6375957756.

It is an arithmetic number, because the mean of its divisors is an integer number (6375957756).

Almost surely, 2^12751915511 is an apocalyptic number.

12751915511 is a deficient number, since it is larger than the sum of its proper divisors (1).

12751915511 is an equidigital number, since it uses as much as digits as its factorization.

12751915511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15750, while the sum is 38.

The spelling of 12751915511 in words is "twelve billion, seven hundred fifty-one million, nine hundred fifteen thousand, five hundred eleven".