27449678823 has 24 divisors (see below), whose sum is σ = 42900042240. Its totient is φ = 15565782960.

The previous prime is 27449678771. The next prime is 27449678869. The reversal of 27449678823 is 32887694472.

It is a happy number.

It is not a de Polignac number, because 27449678823 - 2¹⁰ = 27449677799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27449678723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 693463 + ... + 731976.

It is an arithmetic number, because the mean of its divisors is an integer number (1787501760).

Almost surely, 2^27449678823 is an apocalyptic number.

27449678823 is a deficient number, since it is larger than the sum of its proper divisors (15450363417).

27449678823 is a wasteful number, since it uses less digits than its factorization.

27449678823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425587 (or 1425580 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 60.

The spelling of 27449678823 in words is "twenty-seven billion, four hundred forty-nine million, six hundred seventy-eight thousand, eight hundred twenty-three".