28390558883 has 4 divisors (see below), whose sum is σ = 28403424960. Its totient is φ = 28377692808.

The previous prime is 28390558873. The next prime is 28390558961. The reversal of 28390558883 is 38885509382.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38885509382 = 2 ⋅19442754691.

It is a cyclic number.

It is not a de Polignac number, because 28390558883 - 2²⁶ = 28323450019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28390558853) 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, 6429728 + ... + 6434141.

It is an arithmetic number, because the mean of its divisors is an integer number (7100856240).

Almost surely, 2^28390558883 is an apocalyptic number.

28390558883 is a deficient number, since it is larger than the sum of its proper divisors (12866077).

28390558883 is a wasteful number, since it uses less digits than its factorization.

28390558883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12866076.

The product of its (nonzero) digits is 16588800, while the sum is 59.

The spelling of 28390558883 in words is "twenty-eight billion, three hundred ninety million, five hundred fifty-eight thousand, eight hundred eighty-three".