18368327653 has 8 divisors (see below), whose sum is σ = 20822396000. Its totient is φ = 16062990768.

The previous prime is 18368327651. The next prime is 18368327707. The reversal of 18368327653 is 35672386381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18368327653 - 2¹ = 18368327651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18368327653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18368327651) 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, 37182603 + ... + 37183096.

It is an arithmetic number, because the mean of its divisors is an integer number (2602799500).

Almost surely, 2^18368327653 is an apocalyptic number.

18368327653 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18368327653 is a deficient number, since it is larger than the sum of its proper divisors (2454068347).

18368327653 is a wasteful number, since it uses less digits than its factorization.

18368327653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74365731.

The product of its digits is 4354560, while the sum is 52.

The spelling of 18368327653 in words is "eighteen billion, three hundred sixty-eight million, three hundred twenty-seven thousand, six hundred fifty-three".