27959712919 has 2 divisors, whose sum is σ = 27959712920. Its totient is φ = 27959712918.

The previous prime is 27959712917. The next prime is 27959712953. The reversal of 27959712919 is 91921795972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27959712919 - 2¹ = 27959712917 is a prime.

It is a super-2 number, since 2×27959712919² (a number of 22 digits) contains 22 as substring.

Together with 27959712917, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27959712917) 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 as a sum of consecutive naturals, namely, 13979856459 + 13979856460.

It is an arithmetic number, because the mean of its divisors is an integer number (13979856460).

Almost surely, 2^27959712919 is an apocalyptic number.

27959712919 is a deficient number, since it is larger than the sum of its proper divisors (1).

27959712919 is an equidigital number, since it uses as much as digits as its factorization.

27959712919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6429780, while the sum is 61.

The spelling of 27959712919 in words is "twenty-seven billion, nine hundred fifty-nine million, seven hundred twelve thousand, nine hundred nineteen".