18542414571121 has 16 divisors (see below), whose sum is σ = 21305863809664. Its totient is φ = 15807635149824.

The previous prime is 18542414571103. The next prime is 18542414571137. The reversal of 18542414571121 is 12117541424581.

It is not a de Polignac number, because 18542414571121 - 2⁹ = 18542414570609 is a prime.

It is a super-2 number, since 2×18542414571121² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18542414575121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4566331 + ... + 7611583.

It is an arithmetic number, because the mean of its divisors is an integer number (1331616488104).

Almost surely, 2^{18542414571121} is an apocalyptic number.

It is an amenable number.

18542414571121 is a deficient number, since it is larger than the sum of its proper divisors (2763449238543).

18542414571121 is a wasteful number, since it uses less digits than its factorization.

18542414571121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049960.

The product of its digits is 358400, while the sum is 46.

The spelling of 18542414571121 in words is "eighteen trillion, five hundred forty-two billion, four hundred fourteen million, five hundred seventy-one thousand, one hundred twenty-one".