27908919343 has 2 divisors, whose sum is σ = 27908919344. Its totient is φ = 27908919342.

The previous prime is 27908919317. The next prime is 27908919407. The reversal of 27908919343 is 34391980972.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27908919343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27908919743) 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, 13954459671 + 13954459672.

It is an arithmetic number, because the mean of its divisors is an integer number (13954459672).

Almost surely, 2^27908919343 is an apocalyptic number.

27908919343 is a deficient number, since it is larger than the sum of its proper divisors (1).

27908919343 is an equidigital number, since it uses as much as digits as its factorization.

27908919343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 27908919343 in words is "twenty-seven billion, nine hundred eight million, nine hundred nineteen thousand, three hundred forty-three".