27989680998 has 8 divisors (see below), whose sum is σ = 55979362008. Its totient is φ = 9329893664.

The previous prime is 27989680963. The next prime is 27989681021. The reversal of 27989680998 is 89908698972.

It is a sphenic number, since it is the product of 3 distinct primes.

27989680998 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2332473411 + ... + 2332473422.

It is an arithmetic number, because the mean of its divisors is an integer number (6997420251).

Almost surely, 2^27989680998 is an apocalyptic number.

27989680998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27989680998 is a wasteful number, since it uses less digits than its factorization.

27989680998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4664946838.

The product of its (nonzero) digits is 282175488, while the sum is 75.

The spelling of 27989680998 in words is "twenty-seven billion, nine hundred eighty-nine million, six hundred eighty thousand, nine hundred ninety-eight".