27705999707 has 2 divisors, whose sum is σ = 27705999708. Its totient is φ = 27705999706.

The previous prime is 27705999701. The next prime is 27705999733. The reversal of 27705999707 is 70799950772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27705999707 - 2⁴ = 27705999691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27705999707.

It is not a weakly prime, because it can be changed into another prime (27705999701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13852999853 + 13852999854.

It is an arithmetic number, because the mean of its divisors is an integer number (13852999854).

Almost surely, 2^27705999707 is an apocalyptic number.

27705999707 is a deficient number, since it is larger than the sum of its proper divisors (1).

27705999707 is an equidigital number, since it uses as much as digits as its factorization.

27705999707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17503290, while the sum is 62.

The spelling of 27705999707 in words is "twenty-seven billion, seven hundred five million, nine hundred ninety-nine thousand, seven hundred seven".