27840565828 has 24 divisors (see below), whose sum is σ = 49344386112. Its totient is φ = 13743059424.

The previous prime is 27840565813. The next prime is 27840565829. The reversal of 27840565828 is 82856504872.

It is not an unprimeable number, because it can be changed into a prime (27840565829) 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, 14401 + ... + 236407.

It is an arithmetic number, because the mean of its divisors is an integer number (2056016088).

Almost surely, 2^27840565828 is an apocalyptic number.

It is an amenable number.

27840565828 is a deficient number, since it is larger than the sum of its proper divisors (21503820284).

27840565828 is a wasteful number, since it uses less digits than its factorization.

27840565828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222411 (or 222409 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 55.

The spelling of 27840565828 in words is "twenty-seven billion, eight hundred forty million, five hundred sixty-five thousand, eight hundred twenty-eight".