28745743143 has 16 divisors (see below), whose sum is σ = 41492054016. Its totient is φ = 17597067360.

The previous prime is 28745743133. The next prime is 28745743157. The reversal of 28745743143 is 34134754782.

It is not a de Polignac number, because 28745743143 - 2²⁹ = 28208872231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28745743092 and 28745743101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28745743133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1922055 + ... + 1936952.

It is an arithmetic number, because the mean of its divisors is an integer number (2593253376).

Almost surely, 2^28745743143 is an apocalyptic number.

28745743143 is a deficient number, since it is larger than the sum of its proper divisors (12746310873).

28745743143 is a wasteful number, since it uses less digits than its factorization.

28745743143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3859214.

The product of its digits is 2257920, while the sum is 48.

The spelling of 28745743143 in words is "twenty-eight billion, seven hundred forty-five million, seven hundred forty-three thousand, one hundred forty-three".