18182331930 has 64 divisors (see below), whose sum is σ = 49939089408. Its totient is φ = 4150332480.

The previous prime is 18182331911. The next prime is 18182331931. The reversal of 18182331930 is 3913328181.

It is not an unprimeable number, because it can be changed into a prime (18182331931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97765 + ... + 214295.

It is an arithmetic number, because the mean of its divisors is an integer number (780298272).

Almost surely, 2^18182331930 is an apocalyptic number.

18182331930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18182331930 is an abundant number, since it is smaller than the sum of its proper divisors (31756757478).

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

18182331930 is a wasteful number, since it uses less digits than its factorization.

18182331930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117291.

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 18182331930 in words is "eighteen billion, one hundred eighty-two million, three hundred thirty-one thousand, nine hundred thirty".