27750784368 has 60 divisors (see below), whose sum is σ = 72354749208. Its totient is φ = 9165208320.

The previous prime is 27750784367. The next prime is 27750784423. The reversal of 27750784368 is 86348705772.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27750784361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 545958 + ... + 594618.

Almost surely, 2^27750784368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27750784368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36177374604).

27750784368 is an abundant number, since it is smaller than the sum of its proper divisors (44603964840).

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

27750784368 is a wasteful number, since it uses less digits than its factorization.

27750784368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48890 (or 48775 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 57.

The spelling of 27750784368 in words is "twenty-seven billion, seven hundred fifty million, seven hundred eighty-four thousand, three hundred sixty-eight".