259395480961 has 4 divisors (see below), whose sum is σ = 259427700052. Its totient is φ = 259363261872.

The previous prime is 259395480937. The next prime is 259395481129. The reversal of 259395480961 is 169084593952.

259395480961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 168580042225 + 90815438736 = 410585^2 + 301356^2 .

It is a cyclic number.

It is not a de Polignac number, because 259395480961 - 2⁷ = 259395480833 is a prime.

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 259395480961.

It is not an unprimeable number, because it can be changed into a prime (259395480931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16097466 + ... + 16113571.

It is an arithmetic number, because the mean of its divisors is an integer number (64856925013).

Almost surely, 2^259395480961 is an apocalyptic number.

It is an amenable number.

259395480961 is a deficient number, since it is larger than the sum of its proper divisors (32219091).

259395480961 is an equidigital number, since it uses as much as digits as its factorization.

259395480961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32219090.

The product of its (nonzero) digits is 20995200, while the sum is 61.

The spelling of 259395480961 in words is "two hundred fifty-nine billion, three hundred ninety-five million, four hundred eighty thousand, nine hundred sixty-one".