259953398431 has 8 divisors (see below), whose sum is σ = 268390531584. Its totient is φ = 251616113280.

The previous prime is 259953398429. The next prime is 259953398449. The reversal of 259953398431 is 134893359952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 259953398431 - 2¹ = 259953398429 is a prime.

It is a super-2 number, since 2×259953398431² (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 259953398431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259953398231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24956710 + ... + 24967123.

It is an arithmetic number, because the mean of its divisors is an integer number (33548816448).

Almost surely, 2^259953398431 is an apocalyptic number.

259953398431 is a deficient number, since it is larger than the sum of its proper divisors (8437133153).

259953398431 is a wasteful number, since it uses less digits than its factorization.

259953398431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49924001.

The product of its digits is 31492800, while the sum is 61.

The spelling of 259953398431 in words is "two hundred fifty-nine billion, nine hundred fifty-three million, three hundred ninety-eight thousand, four hundred thirty-one".