259109913779 has 2 divisors, whose sum is σ = 259109913780. Its totient is φ = 259109913778.

The previous prime is 259109913677. The next prime is 259109913787. The reversal of 259109913779 is 977319901952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 259109913779 - 2²⁰ = 259108865203 is a prime.

It is not a weakly prime, because it can be changed into another prime (259109913079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129554956889 + 129554956890.

It is an arithmetic number, because the mean of its divisors is an integer number (129554956890).

Almost surely, 2^259109913779 is an apocalyptic number.

259109913779 is a deficient number, since it is larger than the sum of its proper divisors (1).

259109913779 is an equidigital number, since it uses as much as digits as its factorization.

259109913779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9644670, while the sum is 62.

The spelling of 259109913779 in words is "two hundred fifty-nine billion, one hundred nine million, nine hundred thirteen thousand, seven hundred seventy-nine".