27384092621 has 2 divisors, whose sum is σ = 27384092622. Its totient is φ = 27384092620.

The previous prime is 27384092591. The next prime is 27384092713. The reversal of 27384092621 is 12629048372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23313014596 + 4071078025 = 152686^2 + 63805^2 .

It is a cyclic number.

It is not a de Polignac number, because 27384092621 - 2¹⁰ = 27384091597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27384092221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13692046310 + 13692046311.

It is an arithmetic number, because the mean of its divisors is an integer number (13692046311).

Almost surely, 2^27384092621 is an apocalyptic number.

It is an amenable number.

27384092621 is a deficient number, since it is larger than the sum of its proper divisors (1).

27384092621 is an equidigital number, since it uses as much as digits as its factorization.

27384092621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 27384092621 in words is "twenty-seven billion, three hundred eighty-four million, ninety-two thousand, six hundred twenty-one".