27784138230 has 48 divisors (see below), whose sum is σ = 75379580640. Its totient is φ = 7086968064.

The previous prime is 27784138229. The next prime is 27784138237. The reversal of 27784138230 is 3283148772.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27784138237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6709075 + ... + 6713214.

It is an arithmetic number, because the mean of its divisors is an integer number (1570407930).

Almost surely, 2^27784138230 is an apocalyptic number.

27784138230 is an abundant number, since it is smaller than the sum of its proper divisors (47595442410).

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

27784138230 is a wasteful number, since it uses less digits than its factorization.

27784138230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13422325 (or 13422322 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 27784138230 in words is "twenty-seven billion, seven hundred eighty-four million, one hundred thirty-eight thousand, two hundred thirty".