27731147107 has 2 divisors, whose sum is σ = 27731147108. Its totient is φ = 27731147106.

The previous prime is 27731147047. The next prime is 27731147117. The reversal of 27731147107 is 70174113772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27731147107 - 2⁷ = 27731146979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27731147107.

It is not a weakly prime, because it can be changed into another prime (27731147117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13865573553 + 13865573554.

It is an arithmetic number, because the mean of its divisors is an integer number (13865573554).

Almost surely, 2^27731147107 is an apocalyptic number.

27731147107 is a deficient number, since it is larger than the sum of its proper divisors (1).

27731147107 is an equidigital number, since it uses as much as digits as its factorization.

27731147107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57624, while the sum is 40.

The spelling of 27731147107 in words is "twenty-seven billion, seven hundred thirty-one million, one hundred forty-seven thousand, one hundred seven".