18872113417 has 8 divisors (see below), whose sum is σ = 18937497600. Its totient is φ = 18806833920.

The previous prime is 18872113391. The next prime is 18872113439. The reversal of 18872113417 is 71431127881.

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 18872113417 - 2⁷ = 18872113289 is a prime.

It is a super-2 number, since 2×18872113417² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18872113517) 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, 343992 + ... + 395062.

It is an arithmetic number, because the mean of its divisors is an integer number (2367187200).

Almost surely, 2^18872113417 is an apocalyptic number.

It is an amenable number.

18872113417 is a deficient number, since it is larger than the sum of its proper divisors (65384183).

18872113417 is an equidigital number, since it uses as much as digits as its factorization.

18872113417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52343.

The product of its digits is 75264, while the sum is 43.

The spelling of 18872113417 in words is "eighteen billion, eight hundred seventy-two million, one hundred thirteen thousand, four hundred seventeen".