27632989399 has 2 divisors, whose sum is σ = 27632989400. Its totient is φ = 27632989398.

The previous prime is 27632989381. The next prime is 27632989421. The reversal of 27632989399 is 99398923672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27632989399 - 2¹¹ = 27632987351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27632989379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13816494699 + 13816494700.

It is an arithmetic number, because the mean of its divisors is an integer number (13816494700).

Almost surely, 2^27632989399 is an apocalyptic number.

27632989399 is a deficient number, since it is larger than the sum of its proper divisors (1).

27632989399 is an equidigital number, since it uses as much as digits as its factorization.

27632989399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79361856, while the sum is 67.

The spelling of 27632989399 in words is "twenty-seven billion, six hundred thirty-two million, nine hundred eighty-nine thousand, three hundred ninety-nine".