17999526959 has 2 divisors, whose sum is σ = 17999526960. Its totient is φ = 17999526958.

The previous prime is 17999526949. The next prime is 17999526989. The reversal of 17999526959 is 95962599971.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 17999526959 - 2⁴ = 17999526943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17999526892 and 17999526901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17999526949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8999763479 + 8999763480.

It is an arithmetic number, because the mean of its divisors is an integer number (8999763480).

Almost surely, 2^17999526959 is an apocalyptic number.

17999526959 is a deficient number, since it is larger than the sum of its proper divisors (1).

17999526959 is an equidigital number, since it uses as much as digits as its factorization.

17999526959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124002900, while the sum is 71.

The spelling of 17999526959 in words is "seventeen billion, nine hundred ninety-nine million, five hundred twenty-six thousand, nine hundred fifty-nine".