259029897631 has 4 divisors (see below), whose sum is σ = 259058646232. Its totient is φ = 259001149032.

The previous prime is 259029897589. The next prime is 259029897641. The reversal of 259029897631 is 136798920952.

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 259029897631 - 2²³ = 259021509023 is a prime.

It is a super-2 number, since 2×259029897631² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 259029897631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259029897641) 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, 14360781 + ... + 14378806.

It is an arithmetic number, because the mean of its divisors is an integer number (64764661558).

Almost surely, 2^259029897631 is an apocalyptic number.

259029897631 is a deficient number, since it is larger than the sum of its proper divisors (28748601).

259029897631 is an equidigital number, since it uses as much as digits as its factorization.

259029897631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28748600.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 259029897631 in words is "two hundred fifty-nine billion, twenty-nine million, eight hundred ninety-seven thousand, six hundred thirty-one".