259434683237 has 2 divisors, whose sum is σ = 259434683238. Its totient is φ = 259434683236.

The previous prime is 259434683213. The next prime is 259434683267. The reversal of 259434683237 is 732386434952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162530728801 + 96903954436 = 403151^2 + 311294^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259434683237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259434683267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129717341618 + 129717341619.

It is an arithmetic number, because the mean of its divisors is an integer number (129717341619).

Almost surely, 2^259434683237 is an apocalyptic number.

It is an amenable number.

259434683237 is a deficient number, since it is larger than the sum of its proper divisors (1).

259434683237 is an equidigital number, since it uses as much as digits as its factorization.

259434683237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26127360, while the sum is 56.

The spelling of 259434683237 in words is "two hundred fifty-nine billion, four hundred thirty-four million, six hundred eighty-three thousand, two hundred thirty-seven".