28056154271 has 2 divisors, whose sum is σ = 28056154272. Its totient is φ = 28056154270.

The previous prime is 28056154267. The next prime is 28056154277. The reversal of 28056154271 is 17245165082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28056154271 - 2² = 28056154267 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28056154277) 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, 14028077135 + 14028077136.

It is an arithmetic number, because the mean of its divisors is an integer number (14028077136).

Almost surely, 2^28056154271 is an apocalyptic number.

28056154271 is a deficient number, since it is larger than the sum of its proper divisors (1).

28056154271 is an equidigital number, since it uses as much as digits as its factorization.

28056154271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 28056154271 in words is "twenty-eight billion, fifty-six million, one hundred fifty-four thousand, two hundred seventy-one".