26641281461 has 2 divisors, whose sum is σ = 26641281462. Its totient is φ = 26641281460.

The previous prime is 26641281427. The next prime is 26641281463. The reversal of 26641281461 is 16418214662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23135931025 + 3505350436 = 152105^2 + 59206^2 .

It is a cyclic number.

It is not a de Polignac number, because 26641281461 - 2⁶ = 26641281397 is a prime.

Together with 26641281463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26641281463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13320640730 + 13320640731.

It is an arithmetic number, because the mean of its divisors is an integer number (13320640731).

Almost surely, 2^26641281461 is an apocalyptic number.

It is an amenable number.

26641281461 is a deficient number, since it is larger than the sum of its proper divisors (1).

26641281461 is an equidigital number, since it uses as much as digits as its factorization.

26641281461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 41.

The spelling of 26641281461 in words is "twenty-six billion, six hundred forty-one million, two hundred eighty-one thousand, four hundred sixty-one".