27643607044 has 48 divisors (see below), whose sum is σ = 52445981952. Its totient is φ = 12699320832.

The previous prime is 27643607021. The next prime is 27643607051. The reversal of 27643607044 is 44070634672.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1257919 + ... + 1279705.

It is an arithmetic number, because the mean of its divisors is an integer number (1092624624).

Almost surely, 2^27643607044 is an apocalyptic number.

It is an amenable number.

27643607044 is a deficient number, since it is larger than the sum of its proper divisors (24802374908).

27643607044 is a wasteful number, since it uses less digits than its factorization.

27643607044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22252 (or 22250 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 43.

The spelling of 27643607044 in words is "twenty-seven billion, six hundred forty-three million, six hundred seven thousand, forty-four".