18673427505163 has 8 divisors (see below), whose sum is σ = 18723177901568. Its totient is φ = 18623717708904.

The previous prime is 18673427505059. The next prime is 18673427505167. The reversal of 18673427505163 is 36150572437681.

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-18673427505163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18673427505098 and 18673427505107.

It is not an unprimeable number, because it can be changed into a prime (18673427505167) 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, 9228831 + ... + 11068792.

It is an arithmetic number, because the mean of its divisors is an integer number (2340397237696).

Almost surely, 2^{18673427505163} is an apocalyptic number.

18673427505163 is a deficient number, since it is larger than the sum of its proper divisors (49750396405).

18673427505163 is a wasteful number, since it uses less digits than its factorization.

18673427505163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20300073.

The product of its (nonzero) digits is 25401600, while the sum is 58.

The spelling of 18673427505163 in words is "eighteen trillion, six hundred seventy-three billion, four hundred twenty-seven million, five hundred five thousand, one hundred sixty-three".