28558671479 has 4 divisors (see below), whose sum is σ = 30755492376. Its totient is φ = 26361850584.

The previous prime is 28558671451. The next prime is 28558671497. The reversal of 28558671479 is 97417685582.

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 28558671479 - 2²⁰ = 28557622903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28558671079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1098410429 + ... + 1098410454.

It is an arithmetic number, because the mean of its divisors is an integer number (7688873094).

Almost surely, 2^28558671479 is an apocalyptic number.

28558671479 is a deficient number, since it is larger than the sum of its proper divisors (2196820897).

28558671479 is a wasteful number, since it uses less digits than its factorization.

28558671479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196820896.

The product of its digits is 33868800, while the sum is 62.

The spelling of 28558671479 in words is "twenty-eight billion, five hundred fifty-eight million, six hundred seventy-one thousand, four hundred seventy-nine".