28901330383 has 4 divisors (see below), whose sum is σ = 28919728728. Its totient is φ = 28882932040.

The previous prime is 28901330357. The next prime is 28901330431. The reversal of 28901330383 is 38303310982.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28901330383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28901330303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9196816 + ... + 9199957.

It is an arithmetic number, because the mean of its divisors is an integer number (7229932182).

Almost surely, 2^28901330383 is an apocalyptic number.

28901330383 is a deficient number, since it is larger than the sum of its proper divisors (18398345).

28901330383 is a wasteful number, since it uses less digits than its factorization.

28901330383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18398344.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 28901330383 in words is "twenty-eight billion, nine hundred one million, three hundred thirty thousand, three hundred eighty-three".