28446558143 has 8 divisors (see below), whose sum is σ = 28675871616. Its totient is φ = 28218153600.

The previous prime is 28446558137. The next prime is 28446558157. The reversal of 28446558143 is 34185564482.

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

It is a cyclic number.

It is not a de Polignac number, because 28446558143 - 2²⁰ = 28445509567 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28446558091 and 28446558100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28446558103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164318 + ... + 289643.

It is an arithmetic number, because the mean of its divisors is an integer number (3584483952).

Almost surely, 2^28446558143 is an apocalyptic number.

28446558143 is a deficient number, since it is larger than the sum of its proper divisors (229313473).

28446558143 is a wasteful number, since it uses less digits than its factorization.

28446558143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454465.

The product of its digits is 3686400, while the sum is 50.

The spelling of 28446558143 in words is "twenty-eight billion, four hundred forty-six million, five hundred fifty-eight thousand, one hundred forty-three".