13157954819 has 2 divisors, whose sum is σ = 13157954820. Its totient is φ = 13157954818.

The previous prime is 13157954813. The next prime is 13157954827. The reversal of 13157954819 is 91845975131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13157954819 - 2¹² = 13157950723 is a prime.

It is a super-2 number, since 2×13157954819² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13157954813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6578977409 + 6578977410.

It is an arithmetic number, because the mean of its divisors is an integer number (6578977410).

Almost surely, 2^13157954819 is an apocalyptic number.

13157954819 is a deficient number, since it is larger than the sum of its proper divisors (1).

13157954819 is an equidigital number, since it uses as much as digits as its factorization.

13157954819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 53.

The spelling of 13157954819 in words is "thirteen billion, one hundred fifty-seven million, nine hundred fifty-four thousand, eight hundred nineteen".