18313186830 has 16 divisors (see below), whose sum is σ = 43951648464. Its totient is φ = 4883516480.

The previous prime is 18313186763. The next prime is 18313186847. The reversal of 18313186830 is 3868131381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305219751 + ... + 305219810.

It is an arithmetic number, because the mean of its divisors is an integer number (2746978029).

Almost surely, 2^18313186830 is an apocalyptic number.

18313186830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18313186830 is an abundant number, since it is smaller than the sum of its proper divisors (25638461634).

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

18313186830 is a wasteful number, since it uses less digits than its factorization.

18313186830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610439571.

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 18313186830 in words is "eighteen billion, three hundred thirteen million, one hundred eighty-six thousand, eight hundred thirty".