18172430100801 has 48 divisors (see below), whose sum is σ = 26903165313024. Its totient is φ = 11813985624672.

The previous prime is 18172430100749. The next prime is 18172430100827. The reversal of 18172430100801 is 10800103427181.

18172430100801 is a `hidden beast` number, since 1 + 81 + 72 + 430 + 1 + 0 + 0 + 80 + 1 = 666.

It is not a de Polignac number, because 18172430100801 - 2¹⁰ = 18172430099777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18172430100301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2106455650 + ... + 2106464276.

It is an arithmetic number, because the mean of its divisors is an integer number (560482610688).

Almost surely, 2^{18172430100801} is an apocalyptic number.

It is an amenable number.

18172430100801 is a deficient number, since it is larger than the sum of its proper divisors (8730735212223).

18172430100801 is a wasteful number, since it uses less digits than its factorization.

18172430100801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16890 (or 16887 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

Adding to 18172430100801 its reverse (10800103427181), we get a palindrome (28972533527982).

The spelling of 18172430100801 in words is "eighteen trillion, one hundred seventy-two billion, four hundred thirty million, one hundred thousand, eight hundred one".