27999546668 has 24 divisors (see below), whose sum is σ = 49291080384. Its totient is φ = 13916448000.

The previous prime is 27999546647. The next prime is 27999546689. The reversal of 27999546668 is 86664599972.

It is an interprime number because it is at equal distance from previous prime (27999546647) and next prime (27999546689).

It is a super-2 number, since 2×27999546668² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2021021 + ... + 2034827.

It is an arithmetic number, because the mean of its divisors is an integer number (2053795016).

Almost surely, 2^27999546668 is an apocalyptic number.

It is an amenable number.

27999546668 is a deficient number, since it is larger than the sum of its proper divisors (21291533716).

27999546668 is a wasteful number, since it uses less digits than its factorization.

27999546668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16793 (or 16791 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 71.

The spelling of 27999546668 in words is "twenty-seven billion, nine hundred ninety-nine million, five hundred forty-six thousand, six hundred sixty-eight".