27621623268 has 24 divisors (see below), whose sum is σ = 71611616160. Its totient is φ = 9207207720.

The previous prime is 27621623257. The next prime is 27621623297. The reversal of 27621623268 is 86232612672.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127877778 + ... + 127877993.

It is an arithmetic number, because the mean of its divisors is an integer number (2983817340).

Almost surely, 2^27621623268 is an apocalyptic number.

It is an amenable number.

27621623268 is an abundant number, since it is smaller than the sum of its proper divisors (43989992892).

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

27621623268 is a wasteful number, since it uses less digits than its factorization.

27621623268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255755784 (or 255755776 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The spelling of 27621623268 in words is "twenty-seven billion, six hundred twenty-one million, six hundred twenty-three thousand, two hundred sixty-eight".