812003942592 has 140 divisors (see below), whose sum is σ = 2447832173160. Its totient is φ = 266080287744.

The previous prime is 812003942591. The next prime is 812003942621. The reversal of 812003942592 is 295249300218.

812003942592 is a `hidden beast` number, since 8 + 1 + 2 + 0 + 0 + 394 + 259 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (812003942591) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1021573 + ... + 1633284.

Almost surely, 2^812003942592 is an apocalyptic number.

It is an amenable number.

812003942592 is an abundant number, since it is smaller than the sum of its proper divisors (1635828230568).

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

812003942592 is a wasteful number, since it uses less digits than its factorization.

812003942592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2654940 (or 2654921 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 812003942592 in words is "eight hundred twelve billion, three million, nine hundred forty-two thousand, five hundred ninety-two".