611423564 has 48 divisors (see below), whose sum is σ = 1167965568. Its totient is φ = 278949888.

The previous prime is 611423543. The next prime is 611423597. The reversal of 611423564 is 465324116.

It is a super-2 number, since 2×611423564² = 747677549228924192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 611423564.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360302 + ... + 361994.

It is an arithmetic number, because the mean of its divisors is an integer number (24332616).

Almost surely, 2^611423564 is an apocalyptic number.

It is an amenable number.

611423564 is a deficient number, since it is larger than the sum of its proper divisors (556542004).

611423564 is a wasteful number, since it uses less digits than its factorization.

611423564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874 (or 1872 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 611423564 is about 24726.9804869094. The cubic root of 611423564 is about 848.7518307877.

The spelling of 611423564 in words is "six hundred eleven million, four hundred twenty-three thousand, five hundred sixty-four".