259795748885 has 4 divisors (see below), whose sum is σ = 311754898668. Its totient is φ = 207836599104.

The previous prime is 259795748881. The next prime is 259795748941. The reversal of 259795748885 is 588847597952.

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 160851529969 + 98944218916 = 401063^2 + 314554^2 .

It is a cyclic number.

It is not a de Polignac number, because 259795748885 - 2² = 259795748881 is a prime.

It is a super-2 number, since 2×259795748885² (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 (259795748881) 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, 25979574884 + ... + 25979574893.

It is an arithmetic number, because the mean of its divisors is an integer number (77938724667).

Almost surely, 2^259795748885 is an apocalyptic number.

It is an amenable number.

259795748885 is a deficient number, since it is larger than the sum of its proper divisors (51959149783).

259795748885 is an equidigital number, since it uses as much as digits as its factorization.

259795748885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51959149782.

The product of its digits is 2032128000, while the sum is 77.

The spelling of 259795748885 in words is "two hundred fifty-nine billion, seven hundred ninety-five million, seven hundred forty-eight thousand, eight hundred eighty-five".