27993424293 has 12 divisors (see below), whose sum is σ = 40515340320. Its totient is φ = 18625177896.

The previous prime is 27993424271. The next prime is 27993424307. The reversal of 27993424293 is 39242439972.

27993424293 is a `hidden beast` number, since 2 + 7 + 9 + 9 + 342 + 4 + 293 = 666.

It is not a de Polignac number, because 27993424293 - 2¹² = 27993420197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27993422293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3087303 + ... + 3096356.

It is an arithmetic number, because the mean of its divisors is an integer number (3376278360).

Almost surely, 2^27993424293 is an apocalyptic number.

It is an amenable number.

27993424293 is a deficient number, since it is larger than the sum of its proper divisors (12521916027).

27993424293 is a wasteful number, since it uses less digits than its factorization.

27993424293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6184168 (or 6184165 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The spelling of 27993424293 in words is "twenty-seven billion, nine hundred ninety-three million, four hundred twenty-four thousand, two hundred ninety-three".