27866065913 has 8 divisors (see below), whose sum is σ = 31890385728. Its totient is φ = 23852609424.

The previous prime is 27866065847. The next prime is 27866065921. The reversal of 27866065913 is 31956066872.

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

It is not a de Polignac number, because 27866065913 - 2²⁸ = 27597630457 is a prime.

It is a super-4 number, since 4×27866065913⁴ (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27866065993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2710331 + ... + 2720592.

It is an arithmetic number, because the mean of its divisors is an integer number (3986298216).

Almost surely, 2^27866065913 is an apocalyptic number.

It is an amenable number.

27866065913 is a deficient number, since it is larger than the sum of its proper divisors (4024319815).

27866065913 is an equidigital number, since it uses as much as digits as its factorization.

27866065913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5431663.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 27866065913 in words is "twenty-seven billion, eight hundred sixty-six million, sixty-five thousand, nine hundred thirteen".