27705999733 has 2 divisors, whose sum is σ = 27705999734. Its totient is φ = 27705999732.

The previous prime is 27705999707. The next prime is 27705999791. The reversal of 27705999733 is 33799950772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25858891249 + 1847108484 = 160807^2 + 42978^2 .

It is a cyclic number.

It is not a de Polignac number, because 27705999733 - 2⁵ = 27705999701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27705919733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13852999866 + 13852999867.

It is an arithmetic number, because the mean of its divisors is an integer number (13852999867).

Almost surely, 2^27705999733 is an apocalyptic number.

It is an amenable number.

27705999733 is a deficient number, since it is larger than the sum of its proper divisors (1).

27705999733 is an equidigital number, since it uses as much as digits as its factorization.

27705999733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22504230, while the sum is 61.

The spelling of 27705999733 in words is "twenty-seven billion, seven hundred five million, nine hundred ninety-nine thousand, seven hundred thirty-three".