812518133419 has 2 divisors, whose sum is σ = 812518133420. Its totient is φ = 812518133418.

The previous prime is 812518133299. The next prime is 812518133429. The reversal of 812518133419 is 914331815218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812518133419 - 2²⁷ = 812383915691 is a prime.

It is a super-2 number, since 2×812518133419² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (812518133429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406259066709 + 406259066710.

It is an arithmetic number, because the mean of its divisors is an integer number (406259066710).

Almost surely, 2^812518133419 is an apocalyptic number.

812518133419 is a deficient number, since it is larger than the sum of its proper divisors (1).

812518133419 is an equidigital number, since it uses as much as digits as its factorization.

812518133419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 46.

The spelling of 812518133419 in words is "eight hundred twelve billion, five hundred eighteen million, one hundred thirty-three thousand, four hundred nineteen".