18712225058 has 18 divisors (see below), whose sum is σ = 28269114033. Its totient is φ = 9289661080.

The previous prime is 18712225039. The next prime is 18712225067. The reversal of 18712225058 is 85052221781.

It can be written as a sum of positive squares in 2 ways, for example, as 11988717049 + 6723508009 = 109493^2 + 81997^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=96727.

It is a Duffinian 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 in 8 ways as a sum of consecutive naturals, for example, 38110193 + ... + 38110683.

Almost surely, 2^18712225058 is an apocalyptic number.

18712225058 is a deficient number, since it is larger than the sum of its proper divisors (9556888975).

18712225058 is an frugal number, since it uses more digits than its factorization.

18712225058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 41.

The spelling of 18712225058 in words is "eighteen billion, seven hundred twelve million, two hundred twenty-five thousand, fifty-eight".