26058765989 has 2 divisors, whose sum is σ = 26058765990. Its totient is φ = 26058765988.

The previous prime is 26058765907. The next prime is 26058766007. The reversal of 26058765989 is 98956785062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22977405889 + 3081360100 = 151583^2 + 55510^2 .

It is a cyclic number.

It is not a de Polignac number, because 26058765989 - 2¹⁶ = 26058700453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26058765289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13029382994 + 13029382995.

It is an arithmetic number, because the mean of its divisors is an integer number (13029382995).

Almost surely, 2^26058765989 is an apocalyptic number.

It is an amenable number.

26058765989 is a deficient number, since it is larger than the sum of its proper divisors (1).

26058765989 is an equidigital number, since it uses as much as digits as its factorization.

26058765989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65318400, while the sum is 65.

The spelling of 26058765989 in words is "twenty-six billion, fifty-eight million, seven hundred sixty-five thousand, nine hundred eighty-nine".