812551273823 has 8 divisors (see below), whose sum is σ = 855362860800. Its totient is φ = 769744259928.

The previous prime is 812551273799. The next prime is 812551273871. The reversal of 812551273823 is 328372155218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 812551273823 - 2²⁶ = 812484164959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812551273123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775511 + ... + 1492152.

It is an arithmetic number, because the mean of its divisors is an integer number (106920357600).

Almost surely, 2^812551273823 is an apocalyptic number.

812551273823 is a deficient number, since it is larger than the sum of its proper divisors (42811586977).

812551273823 is a wasteful number, since it uses less digits than its factorization.

812551273823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286541.

The product of its digits is 806400, while the sum is 47.

The spelling of 812551273823 in words is "eight hundred twelve billion, five hundred fifty-one million, two hundred seventy-three thousand, eight hundred twenty-three".