18115345228 has 6 divisors (see below), whose sum is σ = 31701854156. Its totient is φ = 9057672612.

The previous prime is 18115345211. The next prime is 18115345243. The reversal of 18115345228 is 82254351181.

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, 2264418150 + ... + 2264418157.

Almost surely, 2^18115345228 is an apocalyptic number.

It is an amenable number.

18115345228 is a deficient number, since it is larger than the sum of its proper divisors (13586508928).

18115345228 is a wasteful number, since it uses less digits than its factorization.

18115345228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4528836311 (or 4528836309 counting only the distinct ones).

The product of its digits is 76800, while the sum is 40.

The spelling of 18115345228 in words is "eighteen billion, one hundred fifteen million, three hundred forty-five thousand, two hundred twenty-eight".