259598942399 has 4 divisors (see below), whose sum is σ = 259627754136. Its totient is φ = 259570130664.

The previous prime is 259598942381. The next prime is 259598942419. The reversal of 259598942399 is 993249895952.

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 259598942399 - 2²⁸ = 259330506943 is a prime.

It is a super-2 number, since 2×259598942399² (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 (259598942699) 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, 14392349 + ... + 14410374.

It is an arithmetic number, because the mean of its divisors is an integer number (64906938534).

Almost surely, 2^259598942399 is an apocalyptic number.

259598942399 is a deficient number, since it is larger than the sum of its proper divisors (28811737).

259598942399 is an equidigital number, since it uses as much as digits as its factorization.

259598942399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28811736.

The product of its digits is 566870400, while the sum is 74.

The spelling of 259598942399 in words is "two hundred fifty-nine billion, five hundred ninety-eight million, nine hundred forty-two thousand, three hundred ninety-nine".