259461668429 has 2 divisors, whose sum is σ = 259461668430. Its totient is φ = 259461668428.

The previous prime is 259461668393. The next prime is 259461668447. The reversal of 259461668429 is 924866164952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232129312804 + 27332355625 = 481798^2 + 165325^2 .

It is a cyclic number.

It is not a de Polignac number, because 259461668429 - 2¹² = 259461664333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259461668449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129730834214 + 129730834215.

It is an arithmetic number, because the mean of its divisors is an integer number (129730834215).

Almost surely, 2^259461668429 is an apocalyptic number.

It is an amenable number.

259461668429 is a deficient number, since it is larger than the sum of its proper divisors (1).

259461668429 is an equidigital number, since it uses as much as digits as its factorization.

259461668429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44789760, while the sum is 62.

The spelling of 259461668429 in words is "two hundred fifty-nine billion, four hundred sixty-one million, six hundred sixty-eight thousand, four hundred twenty-nine".