259936362242 has 6 divisors (see below), whose sum is σ = 389905624899. Its totient is φ = 129967820610.

The previous prime is 259936362239. The next prime is 259936362247. The reversal of 259936362242 is 242263639952.

It can be written as a sum of positive squares in only one way, i.e., 129968181121 + 129968181121 = 360511^2 + 360511^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=360511.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (259936362247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 540767 + ... + 901277.

Almost surely, 2^259936362242 is an apocalyptic number.

259936362242 is a deficient number, since it is larger than the sum of its proper divisors (129969262657).

259936362242 is an frugal number, since it uses more digits than its factorization.

259936362242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721024 (or 360513 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 53.

The spelling of 259936362242 in words is "two hundred fifty-nine billion, nine hundred thirty-six million, three hundred sixty-two thousand, two hundred forty-two".