27699944099 has 2 divisors, whose sum is σ = 27699944100. Its totient is φ = 27699944098.

The previous prime is 27699944087. The next prime is 27699944147. The reversal of 27699944099 is 99044999672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27699944099 - 2¹² = 27699940003 is a prime.

It is not a weakly prime, because it can be changed into another prime (27699044099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13849972049 + 13849972050.

It is an arithmetic number, because the mean of its divisors is an integer number (13849972050).

Almost surely, 2^27699944099 is an apocalyptic number.

27699944099 is a deficient number, since it is larger than the sum of its proper divisors (1).

27699944099 is an equidigital number, since it uses as much as digits as its factorization.

27699944099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79361856, while the sum is 68.

The spelling of 27699944099 in words is "twenty-seven billion, six hundred ninety-nine million, nine hundred forty-four thousand, ninety-nine".