18507223130 has 32 divisors (see below), whose sum is σ = 36406127808. Its totient is φ = 6717923200.

The previous prime is 18507223081. The next prime is 18507223153. The reversal of 18507223130 is 3132270581.

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 15 ways as a sum of consecutive naturals, for example, 87491 + ... + 211350.

It is an arithmetic number, because the mean of its divisors is an integer number (1137691494).

Almost surely, 2^18507223130 is an apocalyptic number.

18507223130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18507223130 is a deficient number, since it is larger than the sum of its proper divisors (17898904678).

18507223130 is a wasteful number, since it uses less digits than its factorization.

18507223130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299422.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 18507223130 in words is "eighteen billion, five hundred seven million, two hundred twenty-three thousand, one hundred thirty".