28313766419 has 4 divisors (see below), whose sum is σ = 28314352944. Its totient is φ = 28313179896.

The previous prime is 28313766323. The next prime is 28313766431. The reversal of 28313766419 is 91466731382.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28313766419 is a prime.

It is a super-2 number, since 2×28313766419² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28313766479) 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 in 3 ways as a sum of consecutive naturals, for example, 213647 + ... + 319800.

It is an arithmetic number, because the mean of its divisors is an integer number (7078588236).

Almost surely, 2^28313766419 is an apocalyptic number.

28313766419 is a deficient number, since it is larger than the sum of its proper divisors (586525).

28313766419 is an equidigital number, since it uses as much as digits as its factorization.

28313766419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586524.

The product of its digits is 1306368, while the sum is 50.

The spelling of 28313766419 in words is "twenty-eight billion, three hundred thirteen million, seven hundred sixty-six thousand, four hundred nineteen".