28433643548 has 24 divisors (see below), whose sum is σ = 51419028864. Its totient is φ = 13743475200.

The previous prime is 28433643547. The next prime is 28433643559. The reversal of 28433643548 is 84534633482.

It is a junction number, because it is equal to n+sod(n) for n = 28433643496 and 28433643505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28433643547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6173 + ... + 238548.

It is an arithmetic number, because the mean of its divisors is an integer number (2142459536).

Almost surely, 2^28433643548 is an apocalyptic number.

It is an amenable number.

28433643548 is a deficient number, since it is larger than the sum of its proper divisors (22985385316).

28433643548 is a wasteful number, since it uses less digits than its factorization.

28433643548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245693 (or 245691 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 50.

The spelling of 28433643548 in words is "twenty-eight billion, four hundred thirty-three million, six hundred forty-three thousand, five hundred forty-eight".