27631321168 has 40 divisors (see below), whose sum is σ = 59981027040. Its totient is φ = 12220237440.

The previous prime is 27631321163. The next prime is 27631321253. The reversal of 27631321168 is 86112313672.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 27631321168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27631321163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2115058 + ... + 2128081.

It is an arithmetic number, because the mean of its divisors is an integer number (1499525676).

Almost surely, 2^27631321168 is an apocalyptic number.

It is an amenable number.

27631321168 is an abundant number, since it is smaller than the sum of its proper divisors (32349705872).

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

27631321168 is a wasteful number, since it uses less digits than its factorization.

27631321168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243195 (or 4243189 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The spelling of 27631321168 in words is "twenty-seven billion, six hundred thirty-one million, three hundred twenty-one thousand, one hundred sixty-eight".