28783854537 has 8 divisors (see below), whose sum is σ = 38379522720. Its totient is φ = 19188711360.

The previous prime is 28783854499. The next prime is 28783854571. The reversal of 28783854537 is 73545838782.

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

It is not a de Polignac number, because 28783854537 - 2¹⁰ = 28783853513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28783854587) 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, 22362 + ... + 240972.

It is an arithmetic number, because the mean of its divisors is an integer number (4797440340).

Almost surely, 2^28783854537 is an apocalyptic number.

It is an amenable number.

28783854537 is a deficient number, since it is larger than the sum of its proper divisors (9595668183).

28783854537 is a wasteful number, since it uses less digits than its factorization.

28783854537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262503.

The product of its digits is 45158400, while the sum is 60.

The spelling of 28783854537 in words is "twenty-eight billion, seven hundred eighty-three million, eight hundred fifty-four thousand, five hundred thirty-seven".