17980260439 has 2 divisors, whose sum is σ = 17980260440. Its totient is φ = 17980260438.

The previous prime is 17980260433. The next prime is 17980260491. The reversal of 17980260439 is 93406208971.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 17980260439 - 2²⁵ = 17946706007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17980260392 and 17980260401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17980260433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8990130219 + 8990130220.

It is an arithmetic number, because the mean of its divisors is an integer number (8990130220).

Almost surely, 2^17980260439 is an apocalyptic number.

17980260439 is a deficient number, since it is larger than the sum of its proper divisors (1).

17980260439 is an equidigital number, since it uses as much as digits as its factorization.

17980260439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 17980260439 in words is "seventeen billion, nine hundred eighty million, two hundred sixty thousand, four hundred thirty-nine".