27827744865193 has 32 divisors (see below), whose sum is σ = 34482002688000. Its totient is φ = 21868133400576.

The previous prime is 27827744865113. The next prime is 27827744865209. The reversal of 27827744865193 is 39156844772872.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27827744865193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27827744865113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197796168 + ... + 197936806.

It is an arithmetic number, because the mean of its divisors is an integer number (1077562584000).

Almost surely, 2^{27827744865193} is an apocalyptic number.

It is an amenable number.

27827744865193 is a deficient number, since it is larger than the sum of its proper divisors (6654257822807).

27827744865193 is a wasteful number, since it uses less digits than its factorization.

27827744865193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155401.

The product of its digits is 1137991680, while the sum is 73.

The spelling of 27827744865193 in words is "twenty-seven trillion, eight hundred twenty-seven billion, seven hundred forty-four million, eight hundred sixty-five thousand, one hundred ninety-three".