27731843707 has 2 divisors, whose sum is σ = 27731843708. Its totient is φ = 27731843706.

The previous prime is 27731843681. The next prime is 27731843773. The reversal of 27731843707 is 70734813772.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27731843707 is a prime.

It is not a weakly prime, because it can be changed into another prime (27731843207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13865921853 + 13865921854.

It is an arithmetic number, because the mean of its divisors is an integer number (13865921854).

Almost surely, 2^27731843707 is an apocalyptic number.

27731843707 is a deficient number, since it is larger than the sum of its proper divisors (1).

27731843707 is an equidigital number, since it uses as much as digits as its factorization.

27731843707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1382976, while the sum is 49.

The spelling of 27731843707 in words is "twenty-seven billion, seven hundred thirty-one million, eight hundred forty-three thousand, seven hundred seven".