581113868 has 24 divisors (see below), whose sum is σ = 1044441552. Its totient is φ = 282752064.

The previous prime is 581113843. The next prime is 581113891. The reversal of 581113868 is 868311185.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41546 + ... + 53742.

It is an arithmetic number, because the mean of its divisors is an integer number (43518398).

Almost surely, 2^581113868 is an apocalyptic number.

It is an amenable number.

581113868 is a deficient number, since it is larger than the sum of its proper divisors (463327684).

581113868 is a wasteful number, since it uses less digits than its factorization.

581113868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12521 (or 12519 counting only the distinct ones).

The product of its digits is 46080, while the sum is 41.

The square root of 581113868 is about 24106.3034909959. The cubic root of 581113868 is about 834.4886098588.

The spelling of 581113868 in words is "five hundred eighty-one million, one hundred thirteen thousand, eight hundred sixty-eight".