28342284543 has 12 divisors (see below), whose sum is σ = 42718806000. Its totient is φ = 18073340736.

The previous prime is 28342284499. The next prime is 28342284577. The reversal of 28342284543 is 34548224382.

28342284543 is a `hidden beast` number, since 2 + 8 + 3 + 4 + 22 + 84 + 543 = 666.

It is not a de Polignac number, because 28342284543 - 2⁶ = 28342284479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28342282543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68459418 + ... + 68459831.

It is an arithmetic number, because the mean of its divisors is an integer number (3559900500).

Almost surely, 2^28342284543 is an apocalyptic number.

28342284543 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28342284543 is a deficient number, since it is larger than the sum of its proper divisors (14376521457).

28342284543 is a wasteful number, since it uses less digits than its factorization.

28342284543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136919278 (or 136919275 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 45.

The spelling of 28342284543 in words is "twenty-eight billion, three hundred forty-two million, two hundred eighty-four thousand, five hundred forty-three".