18630006853603 has 8 divisors (see below), whose sum is σ = 18642283038720. Its totient is φ = 18617733940680.

The previous prime is 18630006853553. The next prime is 18630006853613. The reversal of 18630006853603 is 30635860003681.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18630006853603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18630006853613) 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, 10625226 + ... + 12253792.

It is an arithmetic number, because the mean of its divisors is an integer number (2330285379840).

Almost surely, 2^{18630006853603} is an apocalyptic number.

18630006853603 is a deficient number, since it is larger than the sum of its proper divisors (12276185117).

18630006853603 is a wasteful number, since it uses less digits than its factorization.

18630006853603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636097.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 18630006853603 in words is "eighteen trillion, six hundred thirty billion, six million, eight hundred fifty-three thousand, six hundred three".