26764883809 has 2 divisors, whose sum is σ = 26764883810. Its totient is φ = 26764883808.

The previous prime is 26764883773. The next prime is 26764883867. The reversal of 26764883809 is 90838846762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24118090000 + 2646793809 = 155300^2 + 51447^2 .

It is a cyclic number.

It is not a de Polignac number, because 26764883809 - 2¹⁵ = 26764851041 is a prime.

It is not a weakly prime, because it can be changed into another prime (26764883909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13382441904 + 13382441905.

It is an arithmetic number, because the mean of its divisors is an integer number (13382441905).

Almost surely, 2^26764883809 is an apocalyptic number.

It is an amenable number.

26764883809 is a deficient number, since it is larger than the sum of its proper divisors (1).

26764883809 is an equidigital number, since it uses as much as digits as its factorization.

26764883809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27869184, while the sum is 61.

The spelling of 26764883809 in words is "twenty-six billion, seven hundred sixty-four million, eight hundred eighty-three thousand, eight hundred nine".