27739646099 has 4 divisors (see below), whose sum is σ = 30261432120. Its totient is φ = 25217860080.

The previous prime is 27739646093. The next prime is 27739646131. The reversal of 27739646099 is 99064693772.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27739646099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27739646093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1260892994 + ... + 1260893015.

It is an arithmetic number, because the mean of its divisors is an integer number (7565358030).

Almost surely, 2^27739646099 is an apocalyptic number.

27739646099 is a deficient number, since it is larger than the sum of its proper divisors (2521786021).

27739646099 is a wasteful number, since it uses less digits than its factorization.

27739646099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521786020.

The product of its (nonzero) digits is 30862944, while the sum is 62.

The spelling of 27739646099 in words is "twenty-seven billion, seven hundred thirty-nine million, six hundred forty-six thousand, ninety-nine".