26265064421 has 2 divisors, whose sum is σ = 26265064422. Its totient is φ = 26265064420.

The previous prime is 26265064403. The next prime is 26265064439. The reversal of 26265064421 is 12446056262.

It is a balanced prime because it is at equal distance from previous prime (26265064403) and next prime (26265064439).

It can be written as a sum of positive squares in only one way, i.e., 26265064225 + 196 = 162065^2 + 14^2 .

It is a cyclic number.

It is not a de Polignac number, because 26265064421 - 2¹⁴ = 26265048037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26265064451) 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, 13132532210 + 13132532211.

It is an arithmetic number, because the mean of its divisors is an integer number (13132532211).

Almost surely, 2^26265064421 is an apocalyptic number.

It is an amenable number.

26265064421 is a deficient number, since it is larger than the sum of its proper divisors (1).

26265064421 is an equidigital number, since it uses as much as digits as its factorization.

26265064421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 26265064421 in words is "twenty-six billion, two hundred sixty-five million, sixty-four thousand, four hundred twenty-one".