18093739616 has 12 divisors (see below), whose sum is σ = 35622049932. Its totient is φ = 9046869792.

The previous prime is 18093739579. The next prime is 18093739619. The reversal of 18093739616 is 61693739081.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18093739619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282714650 + ... + 282714713.

It is an arithmetic number, because the mean of its divisors is an integer number (2968504161).

Almost surely, 2^18093739616 is an apocalyptic number.

18093739616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18093739616 is a deficient number, since it is larger than the sum of its proper divisors (17528310316).

18093739616 is an equidigital number, since it uses as much as digits as its factorization.

18093739616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565429373 (or 565429365 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 53.

The spelling of 18093739616 in words is "eighteen billion, ninety-three million, seven hundred thirty-nine thousand, six hundred sixteen".