26313725597 has 2 divisors, whose sum is σ = 26313725598. Its totient is φ = 26313725596.

The previous prime is 26313725593. The next prime is 26313725719. The reversal of 26313725597 is 79552731362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23674745956 + 2638979641 = 153866^2 + 51371^2 .

It is a cyclic number.

It is not a de Polignac number, because 26313725597 - 2² = 26313725593 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26313725593) 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, 13156862798 + 13156862799.

It is an arithmetic number, because the mean of its divisors is an integer number (13156862799).

Almost surely, 2^26313725597 is an apocalyptic number.

It is an amenable number.

26313725597 is a deficient number, since it is larger than the sum of its proper divisors (1).

26313725597 is an equidigital number, since it uses as much as digits as its factorization.

26313725597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2381400, while the sum is 50.

The spelling of 26313725597 in words is "twenty-six billion, three hundred thirteen million, seven hundred twenty-five thousand, five hundred ninety-seven".