27947722039 has 2 divisors, whose sum is σ = 27947722040. Its totient is φ = 27947722038.

The previous prime is 27947722031. The next prime is 27947722091. The reversal of 27947722039 is 93022774972.

It is an a-pointer prime, because the next prime (27947722091) can be obtained adding 27947722039 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27947722039 - 2³ = 27947722031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27947722031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13973861019 + 13973861020.

It is an arithmetic number, because the mean of its divisors is an integer number (13973861020).

Almost surely, 2^27947722039 is an apocalyptic number.

27947722039 is a deficient number, since it is larger than the sum of its proper divisors (1).

27947722039 is an equidigital number, since it uses as much as digits as its factorization.

27947722039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2667168, while the sum is 52.

The spelling of 27947722039 in words is "twenty-seven billion, nine hundred forty-seven million, seven hundred twenty-two thousand, thirty-nine".