28282359919 has 4 divisors (see below), whose sum is σ = 30853483560. Its totient is φ = 25711236280.

The previous prime is 28282359899. The next prime is 28282359967. The reversal of 28282359919 is 91995328282.

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

It is a cyclic number.

It is not a de Polignac number, because 28282359919 - 2²¹ = 28280262767 is a prime.

It is a super-2 number, since 2×28282359919² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28282359979) 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, 1285561804 + ... + 1285561825.

It is an arithmetic number, because the mean of its divisors is an integer number (7713370890).

Almost surely, 2^28282359919 is an apocalyptic number.

28282359919 is a deficient number, since it is larger than the sum of its proper divisors (2571123641).

28282359919 is a wasteful number, since it uses less digits than its factorization.

28282359919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571123640.

The product of its digits is 5598720, while the sum is 58.

The spelling of 28282359919 in words is "twenty-eight billion, two hundred eighty-two million, three hundred fifty-nine thousand, nine hundred nineteen".