259234591457 has 4 divisors (see below), whose sum is σ = 259235624340. Its totient is φ = 259233558576.

The previous prime is 259234591453. The next prime is 259234591493. The reversal of 259234591457 is 754195432952.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 148694300881 + 110540290576 = 385609^2 + 332476^2 .

It is a cyclic number.

It is not a de Polignac number, because 259234591457 - 2² = 259234591453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (259234591453) 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, 128519 + ... + 731427.

It is an arithmetic number, because the mean of its divisors is an integer number (64808906085).

Almost surely, 2^259234591457 is an apocalyptic number.

It is an amenable number.

259234591457 is a deficient number, since it is larger than the sum of its proper divisors (1032883).

259234591457 is an equidigital number, since it uses as much as digits as its factorization.

259234591457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032882.

The product of its digits is 13608000, while the sum is 56.

The spelling of 259234591457 in words is "two hundred fifty-nine billion, two hundred thirty-four million, five hundred ninety-one thousand, four hundred fifty-seven".