259935809231 has 4 divisors (see below), whose sum is σ = 297069496272. Its totient is φ = 222802122192.

The previous prime is 259935809219. The next prime is 259935809233. The reversal of 259935809231 is 132908539952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 259935809231 - 2¹⁴ = 259935792847 is a prime.

It is a super-2 number, since 2×259935809231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259935809233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18566843510 + ... + 18566843523.

It is an arithmetic number, because the mean of its divisors is an integer number (74267374068).

Almost surely, 2^259935809231 is an apocalyptic number.

259935809231 is a deficient number, since it is larger than the sum of its proper divisors (37133687041).

259935809231 is an equidigital number, since it uses as much as digits as its factorization.

259935809231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37133687040.

The product of its (nonzero) digits is 5248800, while the sum is 56.

The spelling of 259935809231 in words is "two hundred fifty-nine billion, nine hundred thirty-five million, eight hundred nine thousand, two hundred thirty-one".