27731002230 has 96 divisors (see below), whose sum is σ = 72648576000. Its totient is φ = 7338931776.

The previous prime is 27731002147. The next prime is 27731002267. The reversal of 27731002230 is 3220013772.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27731002194 and 27731002203.

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 47 ways as a sum of consecutive naturals, for example, 7860727 + ... + 7864253.

It is an arithmetic number, because the mean of its divisors is an integer number (756756000).

Almost surely, 2^27731002230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27731002230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36324288000).

27731002230 is an abundant number, since it is smaller than the sum of its proper divisors (44917573770).

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

27731002230 is a wasteful number, since it uses less digits than its factorization.

27731002230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4178 (or 4175 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The spelling of 27731002230 in words is "twenty-seven billion, seven hundred thirty-one million, two thousand, two hundred thirty".