27789385916 has 12 divisors (see below), whose sum is σ = 48635464920. Its totient is φ = 13893538800.

The previous prime is 27789385913. The next prime is 27789385963. The reversal of 27789385916 is 61958398772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27789385913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233186 + ... + 331593.

It is an arithmetic number, because the mean of its divisors is an integer number (4052955410).

Almost surely, 2^27789385916 is an apocalyptic number.

It is an amenable number.

27789385916 is a deficient number, since it is larger than the sum of its proper divisors (20846079004).

27789385916 is a wasteful number, since it uses less digits than its factorization.

27789385916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577084 (or 577082 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 65.

The spelling of 27789385916 in words is "twenty-seven billion, seven hundred eighty-nine million, three hundred eighty-five thousand, nine hundred sixteen".