18018886290 has 16 divisors (see below), whose sum is σ = 43245327168. Its totient is φ = 4805036336.

The previous prime is 18018886253. The next prime is 18018886321. The reversal of 18018886290 is 9268881081.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300314742 + ... + 300314801.

It is an arithmetic number, because the mean of its divisors is an integer number (2702832948).

Almost surely, 2^18018886290 is an apocalyptic number.

18018886290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18018886290 is an abundant number, since it is smaller than the sum of its proper divisors (25226440878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18018886290 is a wasteful number, since it uses less digits than its factorization.

18018886290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600629553.

The product of its (nonzero) digits is 442368, while the sum is 51.

The spelling of 18018886290 in words is "eighteen billion, eighteen million, eight hundred eighty-six thousand, two hundred ninety".