28543230471 has 16 divisors (see below), whose sum is σ = 44207472128. Its totient is φ = 16043032800.

The previous prime is 28543230467. The next prime is 28543230479. The reversal of 28543230471 is 17403234582.

It is not a de Polignac number, because 28543230471 - 2² = 28543230467 is a prime.

It is a super-3 number, since 3×28543230471³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28543230479) 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, 11139715 + ... + 11142276.

It is an arithmetic number, because the mean of its divisors is an integer number (2762967008).

Almost surely, 2^28543230471 is an apocalyptic number.

28543230471 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

28543230471 is a deficient number, since it is larger than the sum of its proper divisors (15664241657).

28543230471 is a wasteful number, since it uses less digits than its factorization.

28543230471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22282062.

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 28543230471 in words is "twenty-eight billion, five hundred forty-three million, two hundred thirty thousand, four hundred seventy-one".