259641726979 has 2 divisors, whose sum is σ = 259641726980. Its totient is φ = 259641726978.

The previous prime is 259641726973. The next prime is 259641727013. The reversal of 259641726979 is 979627146952.

259641726979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 259641726979 - 2²¹ = 259639629827 is a prime.

It is not a weakly prime, because it can be changed into another prime (259641726973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129820863489 + 129820863490.

It is an arithmetic number, because the mean of its divisors is an integer number (129820863490).

Almost surely, 2^259641726979 is an apocalyptic number.

259641726979 is a deficient number, since it is larger than the sum of its proper divisors (1).

259641726979 is an equidigital number, since it uses as much as digits as its factorization.

259641726979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102876480, while the sum is 67.

The spelling of 259641726979 in words is "two hundred fifty-nine billion, six hundred forty-one million, seven hundred twenty-six thousand, nine hundred seventy-nine".