259596815449049 has 4 divisors (see below), whose sum is σ = 279565801252836. Its totient is φ = 239627829645264.

The previous prime is 259596815449007. The next prime is 259596815449079. The reversal of 259596815449049 is 940944518695952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105210151840000 + 154386663609049 = 10257200^2 + 12425243^2 .

It is a cyclic number.

It is not a de Polignac number, because 259596815449049 - 2²⁸ = 259596547013593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (259596815449079) 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, 9984492901874 + ... + 9984492901899.

It is an arithmetic number, because the mean of its divisors is an integer number (69891450313209).

Almost surely, 2^{259596815449049} is an apocalyptic number.

It is an amenable number.

259596815449049 is a deficient number, since it is larger than the sum of its proper divisors (19968985803787).

259596815449049 is a wasteful number, since it uses less digits than its factorization.

259596815449049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19968985803786.

The product of its (nonzero) digits is 5038848000, while the sum is 80.

The spelling of 259596815449049 in words is "two hundred fifty-nine trillion, five hundred ninety-six billion, eight hundred fifteen million, four hundred forty-nine thousand, forty-nine".