26727732461 has 2 divisors, whose sum is σ = 26727732462. Its totient is φ = 26727732460.

The previous prime is 26727732457. The next prime is 26727732491. The reversal of 26727732461 is 16423772762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16904940361 + 9822792100 = 130019^2 + 99110^2 .

It is a cyclic number.

It is not a de Polignac number, because 26727732461 - 2² = 26727732457 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26727732491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13363866230 + 13363866231.

It is an arithmetic number, because the mean of its divisors is an integer number (13363866231).

Almost surely, 2^26727732461 is an apocalyptic number.

It is an amenable number.

26727732461 is a deficient number, since it is larger than the sum of its proper divisors (1).

26727732461 is an equidigital number, since it uses as much as digits as its factorization.

26727732461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1185408, while the sum is 47.

The spelling of 26727732461 in words is "twenty-six billion, seven hundred twenty-seven million, seven hundred thirty-two thousand, four hundred sixty-one".