812442027772 has 12 divisors (see below), whose sum is σ = 1505407286880. Its totient is φ = 382325660096.

The previous prime is 812442027751. The next prime is 812442027841. The reversal of 812442027772 is 277720244218.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5973838372 + ... + 5973838507.

It is an arithmetic number, because the mean of its divisors is an integer number (125450607240).

Almost surely, 2^812442027772 is an apocalyptic number.

It is an amenable number.

812442027772 is a deficient number, since it is larger than the sum of its proper divisors (692965259108).

812442027772 is a wasteful number, since it uses less digits than its factorization.

812442027772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11947676900 (or 11947676898 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 46.

The spelling of 812442027772 in words is "eight hundred twelve billion, four hundred forty-two million, twenty-seven thousand, seven hundred seventy-two".