28642030645 has 8 divisors (see below), whose sum is σ = 34425966240. Its totient is φ = 22876604880.

The previous prime is 28642030619. The next prime is 28642030733. The reversal of 28642030645 is 54603024682.

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

It is not a de Polignac number, because 28642030645 - 2⁹ = 28642030133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28642030598 and 28642030607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4624051 + ... + 4630240.

It is an arithmetic number, because the mean of its divisors is an integer number (4303245780).

Almost surely, 2^28642030645 is an apocalyptic number.

It is an amenable number.

28642030645 is a deficient number, since it is larger than the sum of its proper divisors (5783935595).

28642030645 is an equidigital number, since it uses as much as digits as its factorization.

28642030645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9254915.

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 28642030645 in words is "twenty-eight billion, six hundred forty-two million, thirty thousand, six hundred forty-five".