27807836699 has 2 divisors, whose sum is σ = 27807836700. Its totient is φ = 27807836698.

The previous prime is 27807836687. The next prime is 27807836723. The reversal of 27807836699 is 99663870872.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27807836699 is a prime.

It is not a weakly prime, because it can be changed into another prime (27807836899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13903918349 + 13903918350.

It is an arithmetic number, because the mean of its divisors is an integer number (13903918350).

Almost surely, 2^27807836699 is an apocalyptic number.

27807836699 is a deficient number, since it is larger than the sum of its proper divisors (1).

27807836699 is an equidigital number, since it uses as much as digits as its factorization.

27807836699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54867456, while the sum is 65.

The spelling of 27807836699 in words is "twenty-seven billion, eight hundred seven million, eight hundred thirty-six thousand, six hundred ninety-nine".