27844818072 has 128 divisors (see below), whose sum is σ = 74227138560. Its totient is φ = 8685895680.

The previous prime is 27844818059. The next prime is 27844818107. The reversal of 27844818072 is 27081844872.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5114872 + ... + 5120312.

It is an arithmetic number, because the mean of its divisors is an integer number (579899520).

Almost surely, 2^27844818072 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 27844818072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37113569280).

27844818072 is an abundant number, since it is smaller than the sum of its proper divisors (46382320488).

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

27844818072 is a wasteful number, since it uses less digits than its factorization.

27844818072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5673 (or 5669 counting only the distinct ones).

The product of its (nonzero) digits is 1605632, while the sum is 51.

The spelling of 27844818072 in words is "twenty-seven billion, eight hundred forty-four million, eight hundred eighteen thousand, seventy-two".