27959209828 has 12 divisors (see below), whose sum is σ = 53376673392. Its totient is φ = 12708731720.

The previous prime is 27959209819. The next prime is 27959209829. The reversal of 27959209828 is 82890295972.

It is a super-2 number, since 2×27959209828² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27959209829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317718250 + ... + 317718337.

It is an arithmetic number, because the mean of its divisors is an integer number (4448056116).

Almost surely, 2^27959209828 is an apocalyptic number.

It is an amenable number.

27959209828 is a deficient number, since it is larger than the sum of its proper divisors (25417463564).

27959209828 is a wasteful number, since it uses less digits than its factorization.

27959209828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635436602 (or 635436600 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 27959209828 in words is "twenty-seven billion, nine hundred fifty-nine million, two hundred nine thousand, eight hundred twenty-eight".