28281425343 has 8 divisors (see below), whose sum is σ = 37714156800. Its totient is φ = 18851488728.

The previous prime is 28281425323. The next prime is 28281425357. The reversal of 28281425343 is 34352418282.

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

It is not a de Polignac number, because 28281425343 - 2⁶ = 28281425279 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28281425295 and 28281425304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28281425323) 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, 674983 + ... + 715656.

It is an arithmetic number, because the mean of its divisors is an integer number (4714269600).

Almost surely, 2^28281425343 is an apocalyptic number.

28281425343 is a deficient number, since it is larger than the sum of its proper divisors (9432731457).

28281425343 is a wasteful number, since it uses less digits than its factorization.

28281425343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397421.

The product of its digits is 368640, while the sum is 42.

The spelling of 28281425343 in words is "twenty-eight billion, two hundred eighty-one million, four hundred twenty-five thousand, three hundred forty-three".