581004766772 has 12 divisors (see below), whose sum is σ = 1016778028896. Its totient is φ = 290496758520.

The previous prime is 581004766753. The next prime is 581004766787. The reversal of 581004766772 is 277667400185.

It is a happy number.

It is a super-2 number, since 2×581004766772² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

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, 1169378 + ... + 1590425.

It is an arithmetic number, because the mean of its divisors is an integer number (84731502408).

Almost surely, 2^581004766772 is an apocalyptic number.

It is an amenable number.

581004766772 is a deficient number, since it is larger than the sum of its proper divisors (435773262124).

581004766772 is a wasteful number, since it uses less digits than its factorization.

581004766772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812438 (or 2812436 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 53.

The spelling of 581004766772 in words is "five hundred eighty-one billion, four million, seven hundred sixty-six thousand, seven hundred seventy-two".