27013382621 has 2 divisors, whose sum is σ = 27013382622. Its totient is φ = 27013382620.

The previous prime is 27013382593. The next prime is 27013382659. The reversal of 27013382621 is 12628331072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26835026596 + 178356025 = 163814^2 + 13355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27013382621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27013382021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13506691310 + 13506691311.

It is an arithmetic number, because the mean of its divisors is an integer number (13506691311).

Almost surely, 2^27013382621 is an apocalyptic number.

It is an amenable number.

27013382621 is a deficient number, since it is larger than the sum of its proper divisors (1).

27013382621 is an equidigital number, since it uses as much as digits as its factorization.

27013382621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 27013382621 in words is "twenty-seven billion, thirteen million, three hundred eighty-two thousand, six hundred twenty-one".