819792844992 has 84 divisors (see below), whose sum is σ = 2563405298376. Its totient is φ = 248422072320.

The previous prime is 819792844967. The next prime is 819792845033. The reversal of 819792844992 is 299448297918.

819792844992 is a `hidden beast` number, since 8 + 1 + 9 + 7 + 92 + 8 + 449 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 819792844992.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64686913 + ... + 64699584.

Almost surely, 2^819792844992 is an apocalyptic number.

It is an amenable number.

819792844992 is an abundant number, since it is smaller than the sum of its proper divisors (1743612453384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

819792844992 is a wasteful number, since it uses less digits than its factorization.

819792844992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129386526 (or 129386513 counting only the distinct ones).

The product of its digits is 188116992, while the sum is 72.

The spelling of 819792844992 in words is "eight hundred nineteen billion, seven hundred ninety-two million, eight hundred forty-four thousand, nine hundred ninety-two".