27382009493 has 2 divisors, whose sum is σ = 27382009494. Its totient is φ = 27382009492.

The previous prime is 27382009489. The next prime is 27382009511. The reversal of 27382009493 is 39490028372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18517222084 + 8864787409 = 136078^2 + 94153^2 .

It is a cyclic number.

It is not a de Polignac number, because 27382009493 - 2² = 27382009489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27382009423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13691004746 + 13691004747.

It is an arithmetic number, because the mean of its divisors is an integer number (13691004747).

Almost surely, 2^27382009493 is an apocalyptic number.

It is an amenable number.

27382009493 is a deficient number, since it is larger than the sum of its proper divisors (1).

27382009493 is an equidigital number, since it uses as much as digits as its factorization.

27382009493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 27382009493 in words is "twenty-seven billion, three hundred eighty-two million, nine thousand, four hundred ninety-three".