17993119439 has 2 divisors, whose sum is σ = 17993119440. Its totient is φ = 17993119438.

The previous prime is 17993119433. The next prime is 17993119511. The reversal of 17993119439 is 93491139971.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17993119439 is a prime.

It is a super-2 number, since 2×17993119439² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17993119433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8996559719 + 8996559720.

It is an arithmetic number, because the mean of its divisors is an integer number (8996559720).

Almost surely, 2^17993119439 is an apocalyptic number.

17993119439 is a deficient number, since it is larger than the sum of its proper divisors (1).

17993119439 is an equidigital number, since it uses as much as digits as its factorization.

17993119439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1653372, while the sum is 56.

The spelling of 17993119439 in words is "seventeen billion, nine hundred ninety-three million, one hundred nineteen thousand, four hundred thirty-nine".