27773478823 has 8 divisors (see below), whose sum is σ = 27984226880. Its totient is φ = 27563159520.

The previous prime is 27773478797. The next prime is 27773478847. The reversal of 27773478823 is 32887437772.

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 27773478823 - 2¹⁷ = 27773347751 is a prime.

It is a super-2 number, since 2×27773478823² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27773478853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23458 + ... + 236848.

It is an arithmetic number, because the mean of its divisors is an integer number (3498028360).

Almost surely, 2^27773478823 is an apocalyptic number.

27773478823 is a deficient number, since it is larger than the sum of its proper divisors (210748057).

27773478823 is a wasteful number, since it uses less digits than its factorization.

27773478823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214377.

The product of its digits is 22127616, while the sum is 58.

The spelling of 27773478823 in words is "twenty-seven billion, seven hundred seventy-three million, four hundred seventy-eight thousand, eight hundred twenty-three".