259808983601 has 4 divisors (see below), whose sum is σ = 268767914100. Its totient is φ = 250850053104.

The previous prime is 259808983591. The next prime is 259808983769. The reversal of 259808983601 is 106389808952.

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 203924496400 + 55884487201 = 451580^2 + 236399^2 .

It is a cyclic number.

It is not a de Polignac number, because 259808983601 - 2³⁰ = 258735241777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (259808983201) 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, 4479465206 + ... + 4479465263.

It is an arithmetic number, because the mean of its divisors is an integer number (67191978525).

Almost surely, 2^259808983601 is an apocalyptic number.

It is an amenable number.

259808983601 is a deficient number, since it is larger than the sum of its proper divisors (8958930499).

259808983601 is an equidigital number, since it uses as much as digits as its factorization.

259808983601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8958930498.

The product of its (nonzero) digits is 7464960, while the sum is 59.

The spelling of 259808983601 in words is "two hundred fifty-nine billion, eight hundred eight million, nine hundred eighty-three thousand, six hundred one".