12957228919 has 2 divisors, whose sum is σ = 12957228920. Its totient is φ = 12957228918.

The previous prime is 12957228857. The next prime is 12957228941. The reversal of 12957228919 is 91982275921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12957228919 - 2²⁷ = 12823011191 is a prime.

It is a super-2 number, since 2×12957228919² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12957228919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12957328919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6478614459 + 6478614460.

It is an arithmetic number, because the mean of its divisors is an integer number (6478614460).

Almost surely, 2^12957228919 is an apocalyptic number.

12957228919 is a deficient number, since it is larger than the sum of its proper divisors (1).

12957228919 is an equidigital number, since it uses as much as digits as its factorization.

12957228919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 55.

The spelling of 12957228919 in words is "twelve billion, nine hundred fifty-seven million, two hundred twenty-eight thousand, nine hundred nineteen".