28558083919 has 4 divisors (see below), whose sum is σ = 28568636344. Its totient is φ = 28547531496.

The previous prime is 28558083839. The next prime is 28558083979. The reversal of 28558083919 is 91938085582.

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 28558083919 - 2²³ = 28549695311 is a prime.

It is a super-2 number, since 2×28558083919² (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 (28558083979) 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 in 3 ways as a sum of consecutive naturals, for example, 5272152 + ... + 5277565.

It is an arithmetic number, because the mean of its divisors is an integer number (7142159086).

Almost surely, 2^28558083919 is an apocalyptic number.

28558083919 is a deficient number, since it is larger than the sum of its proper divisors (10552425).

28558083919 is a wasteful number, since it uses less digits than its factorization.

28558083919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10552424.

The product of its (nonzero) digits is 6220800, while the sum is 58.

The spelling of 28558083919 in words is "twenty-eight billion, five hundred fifty-eight million, eighty-three thousand, nine hundred nineteen".