18368881330 has 16 divisors (see below), whose sum is σ = 33068125440. Its totient is φ = 7346632752.

The previous prime is 18368881319. The next prime is 18368881337. The reversal of 18368881330 is 3318886381.

It is not an unprimeable number, because it can be changed into a prime (18368881337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27960 + ... + 193699.

It is an arithmetic number, because the mean of its divisors is an integer number (2066757840).

Almost surely, 2^18368881330 is an apocalyptic number.

18368881330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18368881330 is a deficient number, since it is larger than the sum of its proper divisors (14699244110).

18368881330 is a wasteful number, since it uses less digits than its factorization.

18368881330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229953.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 18368881330 in words is "eighteen billion, three hundred sixty-eight million, eight hundred eighty-one thousand, three hundred thirty".