259810849243 has 16 divisors (see below), whose sum is σ = 285765120000. Its totient is φ = 234253356480.

The previous prime is 259810849127. The next prime is 259810849267. The reversal of 259810849243 is 342948018952.

It is a happy number.

It is not a de Polignac number, because 259810849243 - 2²⁵ = 259777294811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (259810849273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495558 + ... + 874756.

It is an arithmetic number, because the mean of its divisors is an integer number (17860320000).

Almost surely, 2^259810849243 is an apocalyptic number.

259810849243 is a deficient number, since it is larger than the sum of its proper divisors (25954270757).

259810849243 is a wasteful number, since it uses less digits than its factorization.

259810849243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379722.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 259810849243 in words is "two hundred fifty-nine billion, eight hundred ten million, eight hundred forty-nine thousand, two hundred forty-three".