28744587143 has 8 divisors (see below), whose sum is σ = 28837885200. Its totient is φ = 28651328640.

The previous prime is 28744587103. The next prime is 28744587161. The reversal of 28744587143 is 34178544782.

It is a happy number.

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 28744587143 - 2¹⁴ = 28744570759 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 (28744587103) 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, 2293871 + ... + 2306367.

It is an arithmetic number, because the mean of its divisors is an integer number (3604735650).

Almost surely, 2^28744587143 is an apocalyptic number.

28744587143 is a deficient number, since it is larger than the sum of its proper divisors (93298057).

28744587143 is a wasteful number, since it uses less digits than its factorization.

28744587143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19777.

The product of its digits is 6021120, while the sum is 53.

The spelling of 28744587143 in words is "twenty-eight billion, seven hundred forty-four million, five hundred eighty-seven thousand, one hundred forty-three".