27879314839 has 2 divisors, whose sum is σ = 27879314840. Its totient is φ = 27879314838.

The previous prime is 27879314831. The next prime is 27879314843. The reversal of 27879314839 is 93841397872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27879314839 - 2³ = 27879314831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27879314831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13939657419 + 13939657420.

It is an arithmetic number, because the mean of its divisors is an integer number (13939657420).

Almost surely, 2^27879314839 is an apocalyptic number.

27879314839 is a deficient number, since it is larger than the sum of its proper divisors (1).

27879314839 is an equidigital number, since it uses as much as digits as its factorization.

27879314839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18289152, while the sum is 61.

The spelling of 27879314839 in words is "twenty-seven billion, eight hundred seventy-nine million, three hundred fourteen thousand, eight hundred thirty-nine".