28153743538 has 8 divisors (see below), whose sum is σ = 44066729088. Its totient is φ = 13464833844.

The previous prime is 28153743523. The next prime is 28153743557. The reversal of 28153743538 is 83534735182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28153743491 and 28153743500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306018906 + ... + 306018997.

It is an arithmetic number, because the mean of its divisors is an integer number (5508341136).

Almost surely, 2^28153743538 is an apocalyptic number.

28153743538 is a deficient number, since it is larger than the sum of its proper divisors (15912985550).

28153743538 is a wasteful number, since it uses less digits than its factorization.

28153743538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612037928.

The product of its digits is 2419200, while the sum is 49.

The spelling of 28153743538 in words is "twenty-eight billion, one hundred fifty-three million, seven hundred forty-three thousand, five hundred thirty-eight".