28143075819 has 8 divisors (see below), whose sum is σ = 37536372112. Its totient is φ = 18755915040.

The previous prime is 28143075817. The next prime is 28143075853. The reversal of 28143075819 is 91857034182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28143075819 - 2¹ = 28143075817 is a prime.

It is a super-2 number, since 2×28143075819² (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 (28143075817) 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 7 ways as a sum of consecutive naturals, for example, 1523164 + ... + 1541529.

It is an arithmetic number, because the mean of its divisors is an integer number (4692046514).

Almost surely, 2^28143075819 is an apocalyptic number.

28143075819 is a deficient number, since it is larger than the sum of its proper divisors (9393296293).

28143075819 is a wasteful number, since it uses less digits than its factorization.

28143075819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067757.

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 28143075819 in words is "twenty-eight billion, one hundred forty-three million, seventy-five thousand, eight hundred nineteen".