27849922848 has 432 divisors, whose sum is σ = 92848654080. Its totient is φ = 8146137600.

The previous prime is 27849922813. The next prime is 27849922907. The reversal of 27849922848 is 84822994872.

It is a tau number, because it is divible by the number of its divisors (432).

It is a super-2 number, since 2×27849922848² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 71593438 + ... + 71593826.

It is an arithmetic number, because the mean of its divisors is an integer number (214927440).

Almost surely, 2^27849922848 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 27849922848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46424327040).

27849922848 is an abundant number, since it is smaller than the sum of its proper divisors (64998731232).

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

27849922848 is an equidigital number, since it uses as much as digits as its factorization.

27849922848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 436 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 63.

The spelling of 27849922848 in words is "twenty-seven billion, eight hundred forty-nine million, nine hundred twenty-two thousand, eight hundred forty-eight".