27728758151 has 2 divisors, whose sum is σ = 27728758152. Its totient is φ = 27728758150.

The previous prime is 27728758133. The next prime is 27728758153. The reversal of 27728758151 is 15185782772.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27728758151 is a prime.

Together with 27728758153, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 27728758093 and 27728758102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27728758153) 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, 13864379075 + 13864379076.

It is an arithmetic number, because the mean of its divisors is an integer number (13864379076).

Almost surely, 2^27728758151 is an apocalyptic number.

27728758151 is a deficient number, since it is larger than the sum of its proper divisors (1).

27728758151 is an equidigital number, since it uses as much as digits as its factorization.

27728758151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2195200, while the sum is 53.

The spelling of 27728758151 in words is "twenty-seven billion, seven hundred twenty-eight million, seven hundred fifty-eight thousand, one hundred fifty-one".