259557468647 has 16 divisors (see below), whose sum is σ = 281635576992. Its totient is φ = 238240558080.

The previous prime is 259557468641. The next prime is 259557468649. The reversal of 259557468647 is 746864755952.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259557468647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259557468641) 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 15 ways as a sum of consecutive naturals, for example, 1800653 + ... + 1939449.

It is an arithmetic number, because the mean of its divisors is an integer number (17602223562).

Almost surely, 2^259557468647 is an apocalyptic number.

259557468647 is a deficient number, since it is larger than the sum of its proper divisors (22078108345).

259557468647 is a wasteful number, since it uses less digits than its factorization.

259557468647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141538.

The product of its digits is 508032000, while the sum is 68.

The spelling of 259557468647 in words is "two hundred fifty-nine billion, five hundred fifty-seven million, four hundred sixty-eight thousand, six hundred forty-seven".