27912392479 has 2 divisors, whose sum is σ = 27912392480. Its totient is φ = 27912392478.

The previous prime is 27912392447. The next prime is 27912392483. The reversal of 27912392479 is 97429321972.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27912392479 - 2⁵ = 27912392447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27912392489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13956196239 + 13956196240.

It is an arithmetic number, because the mean of its divisors is an integer number (13956196240).

Almost surely, 2^27912392479 is an apocalyptic number.

27912392479 is a deficient number, since it is larger than the sum of its proper divisors (1).

27912392479 is an equidigital number, since it uses as much as digits as its factorization.

27912392479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 55.

The spelling of 27912392479 in words is "twenty-seven billion, nine hundred twelve million, three hundred ninety-two thousand, four hundred seventy-nine".