259622091697 has 4 divisors (see below), whose sum is σ = 260981369856. Its totient is φ = 258262813540.

The previous prime is 259622091691. The next prime is 259622091719. The reversal of 259622091697 is 796190226952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259622091697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (259622091691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679638793 + ... + 679639174.

It is an arithmetic number, because the mean of its divisors is an integer number (65245342464).

Almost surely, 2^259622091697 is an apocalyptic number.

It is an amenable number.

259622091697 is a deficient number, since it is larger than the sum of its proper divisors (1359278159).

259622091697 is a wasteful number, since it uses less digits than its factorization.

259622091697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359278158.

The product of its (nonzero) digits is 7348320, while the sum is 58.

The spelling of 259622091697 in words is "two hundred fifty-nine billion, six hundred twenty-two million, ninety-one thousand, six hundred ninety-seven".