28576301491 has 2 divisors, whose sum is σ = 28576301492. Its totient is φ = 28576301490.

The previous prime is 28576301461. The next prime is 28576301513. The reversal of 28576301491 is 19410367582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28576301491 - 2¹¹ = 28576299443 is a prime.

It is not a weakly prime, because it can be changed into another prime (28576301441) 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, 14288150745 + 14288150746.

It is an arithmetic number, because the mean of its divisors is an integer number (14288150746).

It is a 1-persistent number, because it is pandigital, but 2⋅28576301491 = 57152602982 is not.

Almost surely, 2^28576301491 is an apocalyptic number.

28576301491 is a deficient number, since it is larger than the sum of its proper divisors (1).

28576301491 is an equidigital number, since it uses as much as digits as its factorization.

28576301491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 28576301491 in words is "twenty-eight billion, five hundred seventy-six million, three hundred one thousand, four hundred ninety-one".