26300660489 has 2 divisors, whose sum is σ = 26300660490. Its totient is φ = 26300660488.

The previous prime is 26300660473. The next prime is 26300660501. The reversal of 26300660489 is 98406600362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25111790089 + 1188870400 = 158467^2 + 34480^2 .

It is a cyclic number.

It is not a de Polignac number, because 26300660489 - 2⁴ = 26300660473 is a prime.

It is not a weakly prime, because it can be changed into another prime (26300660459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13150330244 + 13150330245.

It is an arithmetic number, because the mean of its divisors is an integer number (13150330245).

Almost surely, 2^26300660489 is an apocalyptic number.

It is an amenable number.

26300660489 is a deficient number, since it is larger than the sum of its proper divisors (1).

26300660489 is an equidigital number, since it uses as much as digits as its factorization.

26300660489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 26300660489 in words is "twenty-six billion, three hundred million, six hundred sixty thousand, four hundred eighty-nine".