27730047730 has 128 divisors (see below), whose sum is σ = 63332720640. Its totient is φ = 8491338240.

The previous prime is 27730047673. The next prime is 27730047749. The reversal of 27730047730 is 3774003772.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11443299 + ... + 11445721.

It is an arithmetic number, because the mean of its divisors is an integer number (494786880).

Almost surely, 2^27730047730 is an apocalyptic number.

27730047730 is an abundant number, since it is smaller than the sum of its proper divisors (35602672910).

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

27730047730 is a wasteful number, since it uses less digits than its factorization.

27730047730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704.

The product of its (nonzero) digits is 172872, while the sum is 40.

The spelling of 27730047730 in words is "twenty-seven billion, seven hundred thirty million, forty-seven thousand, seven hundred thirty".