27680422879 has 2 divisors, whose sum is σ = 27680422880. Its totient is φ = 27680422878.

The previous prime is 27680422871. The next prime is 27680422901. The reversal of 27680422879 is 97822408672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27680422879 - 2³ = 27680422871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27680422871) 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 as a sum of consecutive naturals, namely, 13840211439 + 13840211440.

It is an arithmetic number, because the mean of its divisors is an integer number (13840211440).

Almost surely, 2^27680422879 is an apocalyptic number.

27680422879 is a deficient number, since it is larger than the sum of its proper divisors (1).

27680422879 is an equidigital number, since it uses as much as digits as its factorization.

27680422879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 27680422879 in words is "twenty-seven billion, six hundred eighty million, four hundred twenty-two thousand, eight hundred seventy-nine".