27993662773 has 8 divisors (see below), whose sum is σ = 28047254400. Its totient is φ = 27940119648.

The previous prime is 27993662771. The next prime is 27993662791. The reversal of 27993662773 is 37726639972.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27993662773 - 2¹ = 27993662771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27993662771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1269718 + ... + 1291576.

It is an arithmetic number, because the mean of its divisors is an integer number (3505906800).

Almost surely, 2^27993662773 is an apocalyptic number.

It is an amenable number.

27993662773 is a deficient number, since it is larger than the sum of its proper divisors (53591627).

27993662773 is a wasteful number, since it uses less digits than its factorization.

27993662773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24251.

The product of its digits is 36006768, while the sum is 61.

The spelling of 27993662773 in words is "twenty-seven billion, nine hundred ninety-three million, six hundred sixty-two thousand, seven hundred seventy-three".