28851446719 has 2 divisors, whose sum is σ = 28851446720. Its totient is φ = 28851446718.

The previous prime is 28851446677. The next prime is 28851446777. The reversal of 28851446719 is 91764415882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28851446719 - 2²¹ = 28849349567 is a prime.

It is a super-2 number, since 2×28851446719² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28851446719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28851440719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14425723359 + 14425723360.

It is an arithmetic number, because the mean of its divisors is an integer number (14425723360).

Almost surely, 2^28851446719 is an apocalyptic number.

28851446719 is a deficient number, since it is larger than the sum of its proper divisors (1).

28851446719 is an equidigital number, since it uses as much as digits as its factorization.

28851446719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 55.

The spelling of 28851446719 in words is "twenty-eight billion, eight hundred fifty-one million, four hundred forty-six thousand, seven hundred nineteen".