18368294394 has 16 divisors (see below), whose sum is σ = 36750343968. Its totient is φ = 6120472272.

The previous prime is 18368294387. The next prime is 18368294407. The reversal of 18368294394 is 49349286381.

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, 555732 + ... + 587855.

It is an arithmetic number, because the mean of its divisors is an integer number (2296896498).

Almost surely, 2^18368294394 is an apocalyptic number.

18368294394 is an abundant number, since it is smaller than the sum of its proper divisors (18382049574).

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

18368294394 is a wasteful number, since it uses less digits than its factorization.

18368294394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146269.

The product of its digits is 8957952, while the sum is 57.

The spelling of 18368294394 in words is "eighteen billion, three hundred sixty-eight million, two hundred ninety-four thousand, three hundred ninety-four".