27823427644 has 12 divisors (see below), whose sum is σ = 50261675968. Its totient is φ = 13462948800.

The previous prime is 27823427633. The next prime is 27823427657. The reversal of 27823427644 is 44672432872.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112191117 + ... + 112191364.

Almost surely, 2^27823427644 is an apocalyptic number.

It is an amenable number.

27823427644 is a deficient number, since it is larger than the sum of its proper divisors (22438248324).

27823427644 is a wasteful number, since it uses less digits than its factorization.

27823427644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224382516 (or 224382514 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 49.

The spelling of 27823427644 in words is "twenty-seven billion, eight hundred twenty-three million, four hundred twenty-seven thousand, six hundred forty-four".