12536157419 has 2 divisors, whose sum is σ = 12536157420. Its totient is φ = 12536157418.

The previous prime is 12536157377. The next prime is 12536157443. The reversal of 12536157419 is 91475163521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12536157419 - 2⁸ = 12536157163 is a prime.

It is a super-2 number, since 2×12536157419² (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 12536157419.

It is not a weakly prime, because it can be changed into another prime (12536157019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6268078709 + 6268078710.

It is an arithmetic number, because the mean of its divisors is an integer number (6268078710).

Almost surely, 2^12536157419 is an apocalyptic number.

12536157419 is a deficient number, since it is larger than the sum of its proper divisors (1).

12536157419 is an equidigital number, since it uses as much as digits as its factorization.

12536157419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 44.

The spelling of 12536157419 in words is "twelve billion, five hundred thirty-six million, one hundred fifty-seven thousand, four hundred nineteen".