27949467896 has 48 divisors (see below), whose sum is σ = 61120707840. Its totient is φ = 11947004160.

The previous prime is 27949467881. The next prime is 27949467919. The reversal of 27949467896 is 69876494972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57056 + ... + 243216.

It is an arithmetic number, because the mean of its divisors is an integer number (1273348080).

Almost surely, 2^27949467896 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 27949467896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30560353920).

27949467896 is an abundant number, since it is smaller than the sum of its proper divisors (33171239944).

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

27949467896 is a wasteful number, since it uses less digits than its factorization.

27949467896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186564 (or 186553 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 71.

The spelling of 27949467896 in words is "twenty-seven billion, nine hundred forty-nine million, four hundred sixty-seven thousand, eight hundred ninety-six".