812679672419 has 6 divisors (see below), whose sum is σ = 823096979460. Its totient is φ = 802392581796.

The previous prime is 812679672379. The next prime is 812679672433. The reversal of 812679672419 is 914276976218.

It is not a de Polignac number, because 812679672419 - 2³² = 808384705123 is a prime.

It is a super-2 number, since 2×812679672419² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812679672019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65101889 + ... + 65114370.

It is an arithmetic number, because the mean of its divisors is an integer number (137182829910).

Almost surely, 2^812679672419 is an apocalyptic number.

812679672419 is a deficient number, since it is larger than the sum of its proper divisors (10417307041).

812679672419 is an equidigital number, since it uses as much as digits as its factorization.

812679672419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130216417 (or 130216338 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 62.

The spelling of 812679672419 in words is "eight hundred twelve billion, six hundred seventy-nine million, six hundred seventy-two thousand, four hundred nineteen".