28985321801 has 8 divisors (see below), whose sum is σ = 29121781920. Its totient is φ = 28849182912.

The previous prime is 28985321779. The next prime is 28985321831. The reversal of 28985321801 is 10812358982.

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

It is a cyclic number.

It is not a de Polignac number, because 28985321801 - 2¹⁸ = 28985059657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28985321831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101546 + ... + 261308.

It is an arithmetic number, because the mean of its divisors is an integer number (3640222740).

Almost surely, 2^28985321801 is an apocalyptic number.

It is an amenable number.

28985321801 is a deficient number, since it is larger than the sum of its proper divisors (136460119).

28985321801 is a wasteful number, since it uses less digits than its factorization.

28985321801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160615.

The product of its (nonzero) digits is 276480, while the sum is 47.

The spelling of 28985321801 in words is "twenty-eight billion, nine hundred eighty-five million, three hundred twenty-one thousand, eight hundred one".