26355075613 has 2 divisors, whose sum is σ = 26355075614. Its totient is φ = 26355075612.

The previous prime is 26355075601. The next prime is 26355075641. The reversal of 26355075613 is 31657055362.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23561636004 + 2793439609 = 153498^2 + 52853^2 .

It is a cyclic number.

It is not a de Polignac number, because 26355075613 - 2⁹ = 26355075101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26355075613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26355075013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13177537806 + 13177537807.

It is an arithmetic number, because the mean of its divisors is an integer number (13177537807).

Almost surely, 2^26355075613 is an apocalyptic number.

It is an amenable number.

26355075613 is a deficient number, since it is larger than the sum of its proper divisors (1).

26355075613 is an equidigital number, since it uses as much as digits as its factorization.

26355075613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567000, while the sum is 43.

The spelling of 26355075613 in words is "twenty-six billion, three hundred fifty-five million, seventy-five thousand, six hundred thirteen".