18560792644 has 27 divisors (see below), whose sum is σ = 34513062493. Its totient is φ = 8732310848.

The previous prime is 18560792639. The next prime is 18560792647. The reversal of 18560792644 is 44629706581.

The square root of 18560792644 is 136238.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 14450444100 + 4110348544 = 120210^2 + 64112^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18560792591 and 18560792600.

It is not an unprimeable number, because it can be changed into a prime (18560792647) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4630089 + ... + 4634095.

Almost surely, 2^18560792644 is an apocalyptic number.

18560792644 is the 136238-th square number.

It is an amenable number.

18560792644 is a deficient number, since it is larger than the sum of its proper divisors (15952269849).

18560792644 is an frugal number, since it uses more digits than its factorization.

18560792644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8052 (or 4026 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 18560792644 in words is "eighteen billion, five hundred sixty million, seven hundred ninety-two thousand, six hundred forty-four".