27871367268 has 24 divisors (see below), whose sum is σ = 65341410400. Its totient is φ = 9246424320.

The previous prime is 27871367267. The next prime is 27871367291. The reversal of 27871367268 is 86276317872.

It is a happy number.

It is a super-2 number, since 2×27871367268² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27871367261) 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, 5501293 + ... + 5506356.

Almost surely, 2^27871367268 is an apocalyptic number.

It is an amenable number.

27871367268 is an abundant number, since it is smaller than the sum of its proper divisors (37470043132).

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

27871367268 is a wasteful number, since it uses less digits than its factorization.

27871367268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11007867 (or 11007865 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 57.

The spelling of 27871367268 in words is "twenty-seven billion, eight hundred seventy-one million, three hundred sixty-seven thousand, two hundred sixty-eight".