28272127591 has 2 divisors, whose sum is σ = 28272127592. Its totient is φ = 28272127590.

The previous prime is 28272127573. The next prime is 28272127633. The reversal of 28272127591 is 19572127282.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28272127591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28272127511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14136063795 + 14136063796.

It is an arithmetic number, because the mean of its divisors is an integer number (14136063796).

Almost surely, 2^28272127591 is an apocalyptic number.

28272127591 is a deficient number, since it is larger than the sum of its proper divisors (1).

28272127591 is an equidigital number, since it uses as much as digits as its factorization.

28272127591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 46.

The spelling of 28272127591 in words is "twenty-eight billion, two hundred seventy-two million, one hundred twenty-seven thousand, five hundred ninety-one".