27750412889 has 16 divisors (see below), whose sum is σ = 28346044800. Its totient is φ = 27160531200.

The previous prime is 27750412867. The next prime is 27750412891. The reversal of 27750412889 is 98821405772.

It is a cyclic number.

It is not a de Polignac number, because 27750412889 - 2²⁴ = 27733635673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27750412889.

It is not an unprimeable number, because it can be changed into a prime (27750412819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16012067 + ... + 16013799.

It is an arithmetic number, because the mean of its divisors is an integer number (1771627800).

Almost surely, 2^27750412889 is an apocalyptic number.

It is an amenable number.

27750412889 is a deficient number, since it is larger than the sum of its proper divisors (595631911).

27750412889 is a wasteful number, since it uses less digits than its factorization.

27750412889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200.

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 27750412889 in words is "twenty-seven billion, seven hundred fifty million, four hundred twelve thousand, eight hundred eighty-nine".