27478016879 has 8 divisors (see below), whose sum is σ = 28067497920. Its totient is φ = 26888737696.

The previous prime is 27478016857. The next prime is 27478016893. The reversal of 27478016879 is 97861087472.

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 27478016879 - 2²⁰ = 27476968303 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 (27478016849) 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, 242777 + ... + 337485.

It is an arithmetic number, because the mean of its divisors is an integer number (3508437240).

Almost surely, 2^27478016879 is an apocalyptic number.

27478016879 is a deficient number, since it is larger than the sum of its proper divisors (589481041).

27478016879 is an equidigital number, since it uses as much as digits as its factorization.

27478016879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100929.

The product of its (nonzero) digits is 9483264, while the sum is 59.

The spelling of 27478016879 in words is "twenty-seven billion, four hundred seventy-eight million, sixteen thousand, eight hundred seventy-nine".