17872440589 has 2 divisors, whose sum is σ = 17872440590. Its totient is φ = 17872440588.

The previous prime is 17872440587. The next prime is 17872440601. The reversal of 17872440589 is 98504427871.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13006262025 + 4866178564 = 114045^2 + 69758^2 .

It is an emirp because it is prime and its reverse (98504427871) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17872440589 - 2¹ = 17872440587 is a prime.

Together with 17872440587, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17872440587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8936220294 + 8936220295.

It is an arithmetic number, because the mean of its divisors is an integer number (8936220295).

Almost surely, 2^17872440589 is an apocalyptic number.

It is an amenable number.

17872440589 is a deficient number, since it is larger than the sum of its proper divisors (1).

17872440589 is an equidigital number, since it uses as much as digits as its factorization.

17872440589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 17872440589 in words is "seventeen billion, eight hundred seventy-two million, four hundred forty thousand, five hundred eighty-nine".