28132043423 has 8 divisors (see below), whose sum is σ = 30727353216. Its totient is φ = 25543042200.

The previous prime is 28132043371. The next prime is 28132043449. The reversal of 28132043423 is 32434023182.

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 28132043423 - 2¹⁰ = 28132042399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28132043423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28132043483) 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, 1567811 + ... + 1585652.

It is an arithmetic number, because the mean of its divisors is an integer number (3840919152).

Almost surely, 2^28132043423 is an apocalyptic number.

28132043423 is a deficient number, since it is larger than the sum of its proper divisors (2595309793).

28132043423 is a wasteful number, since it uses less digits than its factorization.

28132043423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154285.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 28132043423 in words is "twenty-eight billion, one hundred thirty-two million, forty-three thousand, four hundred twenty-three".