28433164747 has 4 divisors (see below), whose sum is σ = 30620331280. Its totient is φ = 26245998216.

The previous prime is 28433164733. The next prime is 28433164769. The reversal of 28433164747 is 74746133482.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28433164747 - 2⁷ = 28433164619 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 28433164747.

It is not an unprimeable number, because it can be changed into a prime (28433164787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093583247 + ... + 1093583272.

It is an arithmetic number, because the mean of its divisors is an integer number (7655082820).

Almost surely, 2^28433164747 is an apocalyptic number.

28433164747 is a deficient number, since it is larger than the sum of its proper divisors (2187166533).

28433164747 is a wasteful number, since it uses less digits than its factorization.

28433164747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187166532.

The product of its digits is 2709504, while the sum is 49.

The spelling of 28433164747 in words is "twenty-eight billion, four hundred thirty-three million, one hundred sixty-four thousand, seven hundred forty-seven".