27913916646 has 72 divisors (see below), whose sum is σ = 75975109392. Its totient is φ = 7250364000.

The previous prime is 27913916609. The next prime is 27913916659. The reversal of 27913916646 is 64661931972.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27913916592 and 27913916601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 900205 + ... + 930696.

Almost surely, 2^27913916646 is an apocalyptic number.

27913916646 is an abundant number, since it is smaller than the sum of its proper divisors (48061192746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27913916646 is a wasteful number, since it uses less digits than its factorization.

27913916646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830938 (or 1830924 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The spelling of 27913916646 in words is "twenty-seven billion, nine hundred thirteen million, nine hundred sixteen thousand, six hundred forty-six".