18574245202 has 4 divisors (see below), whose sum is σ = 27861367806. Its totient is φ = 9287122600.

The previous prime is 18574245139. The next prime is 18574245233. The reversal of 18574245202 is 20254247581.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20254247581 = 1129 ⋅17939989.

It can be written as a sum of positive squares in only one way, i.e., 17969134401 + 605110801 = 134049^2 + 24599^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4643561299 + ... + 4643561302.

Almost surely, 2^18574245202 is an apocalyptic number.

18574245202 is a deficient number, since it is larger than the sum of its proper divisors (9287122604).

18574245202 is an equidigital number, since it uses as much as digits as its factorization.

18574245202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9287122603.

The product of its (nonzero) digits is 179200, while the sum is 40.

The spelling of 18574245202 in words is "eighteen billion, five hundred seventy-four million, two hundred forty-five thousand, two hundred two".