27840876667 has 8 divisors (see below), whose sum is σ = 28256158224. Its totient is φ = 27427496448.

The previous prime is 27840876647. The next prime is 27840876689. The reversal of 27840876667 is 76667804872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27840876667 is a prime.

It is a super-2 number, since 2×27840876667² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27840876647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445818 + ... + 504415.

It is an arithmetic number, because the mean of its divisors is an integer number (3532019778).

Almost surely, 2^27840876667 is an apocalyptic number.

27840876667 is a deficient number, since it is larger than the sum of its proper divisors (415281557).

27840876667 is an equidigital number, since it uses as much as digits as its factorization.

27840876667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950669.

The product of its (nonzero) digits is 37933056, while the sum is 61.

The spelling of 27840876667 in words is "twenty-seven billion, eight hundred forty million, eight hundred seventy-six thousand, six hundred sixty-seven".