812052394593 has 32 divisors (see below), whose sum is σ = 1192791275520. Its totient is φ = 487310826240.

The previous prime is 812052394583. The next prime is 812052394607. The reversal of 812052394593 is 395493250218.

It is a happy number.

It is not a de Polignac number, because 812052394593 - 2²² = 812048200289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (812052394583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44391993 + ... + 44410281.

It is an arithmetic number, because the mean of its divisors is an integer number (37274727360).

Almost surely, 2^812052394593 is an apocalyptic number.

It is an amenable number.

812052394593 is a deficient number, since it is larger than the sum of its proper divisors (380738880927).

812052394593 is a wasteful number, since it uses less digits than its factorization.

812052394593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31469.

The product of its (nonzero) digits is 2332800, while the sum is 51.

The spelling of 812052394593 in words is "eight hundred twelve billion, fifty-two million, three hundred ninety-four thousand, five hundred ninety-three".