812723676937 has 4 divisors (see below), whose sum is σ = 819123076096. Its totient is φ = 806324277780.

The previous prime is 812723676929. The next prime is 812723676949. The reversal of 812723676937 is 739676327218.

It is a happy number.

812723676937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 812723676937 - 2³ = 812723676929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812723671937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3199699389 + ... + 3199699642.

It is an arithmetic number, because the mean of its divisors is an integer number (204780769024).

Almost surely, 2^812723676937 is an apocalyptic number.

It is an amenable number.

812723676937 is a deficient number, since it is larger than the sum of its proper divisors (6399399159).

812723676937 is a wasteful number, since it uses less digits than its factorization.

812723676937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6399399158.

The product of its digits is 32006016, while the sum is 61.

The spelling of 812723676937 in words is "eight hundred twelve billion, seven hundred twenty-three million, six hundred seventy-six thousand, nine hundred thirty-seven".