27670637399 has 2 divisors, whose sum is σ = 27670637400. Its totient is φ = 27670637398.

The previous prime is 27670637381. The next prime is 27670637411. The reversal of 27670637399 is 99373607672.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27670637399 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27670687399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13835318699 + 13835318700.

It is an arithmetic number, because the mean of its divisors is an integer number (13835318700).

Almost surely, 2^27670637399 is an apocalyptic number.

27670637399 is a deficient number, since it is larger than the sum of its proper divisors (1).

27670637399 is an equidigital number, since it uses as much as digits as its factorization.

27670637399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18003384, while the sum is 59.

The spelling of 27670637399 in words is "twenty-seven billion, six hundred seventy million, six hundred thirty-seven thousand, three hundred ninety-nine".