27493408793 has 2 divisors, whose sum is σ = 27493408794. Its totient is φ = 27493408792.

The previous prime is 27493408783. The next prime is 27493408829. The reversal of 27493408793 is 39780439472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19401146944 + 8092261849 = 139288^2 + 89957^2 .

It is a cyclic number.

It is not a de Polignac number, because 27493408793 - 2¹⁶ = 27493343257 is a prime.

It is not a weakly prime, because it can be changed into another prime (27493408703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13746704396 + 13746704397.

It is an arithmetic number, because the mean of its divisors is an integer number (13746704397).

Almost surely, 2^27493408793 is an apocalyptic number.

It is an amenable number.

27493408793 is a deficient number, since it is larger than the sum of its proper divisors (1).

27493408793 is an equidigital number, since it uses as much as digits as its factorization.

27493408793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 27493408793 in words is "twenty-seven billion, four hundred ninety-three million, four hundred eight thousand, seven hundred ninety-three".