581374865706 has 64 divisors (see below), whose sum is σ = 1204884627456. Its totient is φ = 186818788800.

The previous prime is 581374865657. The next prime is 581374865713. The reversal of 581374865706 is 607568473185.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 581374865706.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52621875 + ... + 52632921.

It is an arithmetic number, because the mean of its divisors is an integer number (18826322304).

Almost surely, 2^581374865706 is an apocalyptic number.

581374865706 is an abundant number, since it is smaller than the sum of its proper divisors (623509761750).

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

581374865706 is a wasteful number, since it uses less digits than its factorization.

581374865706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12147.

The product of its (nonzero) digits is 33868800, while the sum is 60.

The spelling of 581374865706 in words is "five hundred eighty-one billion, three hundred seventy-four million, eight hundred sixty-five thousand, seven hundred six".