17872440089 has 8 divisors (see below), whose sum is σ = 20431848768. Its totient is φ = 15314582160.

The previous prime is 17872440031. The next prime is 17872440109. The reversal of 17872440089 is 98004427871.

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-17872440089 is a prime.

It is a super-2 number, since 2×17872440089² (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 (17872440589) 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, 362882 + ... + 409179.

It is an arithmetic number, because the mean of its divisors is an integer number (2553981096).

Almost surely, 2^17872440089 is an apocalyptic number.

It is an amenable number.

17872440089 is a deficient number, since it is larger than the sum of its proper divisors (2559408679).

17872440089 is an equidigital number, since it uses as much as digits as its factorization.

17872440089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775375.

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 17872440089 in words is "seventeen billion, eight hundred seventy-two million, four hundred forty thousand, eighty-nine".