26264113261 has 2 divisors, whose sum is σ = 26264113262. Its totient is φ = 26264113260.

The previous prime is 26264113247. The next prime is 26264113301. The reversal of 26264113261 is 16231146262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25333497225 + 930616036 = 159165^2 + 30506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26264113261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26264113661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13132056630 + 13132056631.

It is an arithmetic number, because the mean of its divisors is an integer number (13132056631).

Almost surely, 2^26264113261 is an apocalyptic number.

It is an amenable number.

26264113261 is a deficient number, since it is larger than the sum of its proper divisors (1).

26264113261 is an equidigital number, since it uses as much as digits as its factorization.

26264113261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 34.

The spelling of 26264113261 in words is "twenty-six billion, two hundred sixty-four million, one hundred thirteen thousand, two hundred sixty-one".