27256005679 has 8 divisors (see below), whose sum is σ = 31190659488. Its totient is φ = 23331586560.

The previous prime is 27256005661. The next prime is 27256005683. The reversal of 27256005679 is 97650065272.

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

It is a cyclic number.

It is not a de Polignac number, because 27256005679 - 2²⁷ = 27121787951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27256005649) by changing a digit.

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, 2552962 + ... + 2563615.

It is an arithmetic number, because the mean of its divisors is an integer number (3898832436).

Almost surely, 2^27256005679 is an apocalyptic number.

27256005679 is a deficient number, since it is larger than the sum of its proper divisors (3934653809).

27256005679 is an equidigital number, since it uses as much as digits as its factorization.

27256005679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5117345.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 27256005679 in words is "twenty-seven billion, two hundred fifty-six million, five thousand, six hundred seventy-nine".