18572861459 has 4 divisors (see below), whose sum is σ = 18573760800. Its totient is φ = 18571962120.

The previous prime is 18572861443. The next prime is 18572861477. The reversal of 18572861459 is 95416827581.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95416827581 = 127 ⋅751313603.

It is a cyclic number.

It is not a de Polignac number, because 18572861459 - 2⁴ = 18572861443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18572861159) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 417947 + ... + 460244.

It is an arithmetic number, because the mean of its divisors is an integer number (4643440200).

Almost surely, 2^18572861459 is an apocalyptic number.

18572861459 is a deficient number, since it is larger than the sum of its proper divisors (899341).

18572861459 is an equidigital number, since it uses as much as digits as its factorization.

18572861459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899340.

The product of its digits is 4838400, while the sum is 56.

The spelling of 18572861459 in words is "eighteen billion, five hundred seventy-two million, eight hundred sixty-one thousand, four hundred fifty-nine".