28357846628 has 12 divisors (see below), whose sum is σ = 50090028912. Its totient is φ = 14046409800.

The previous prime is 28357846571. The next prime is 28357846663. The reversal of 28357846628 is 82664875382.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33127898 + ... + 33128753.

It is an arithmetic number, because the mean of its divisors is an integer number (4174169076).

Almost surely, 2^28357846628 is an apocalyptic number.

It is an amenable number.

28357846628 is a deficient number, since it is larger than the sum of its proper divisors (21732182284).

28357846628 is a wasteful number, since it uses less digits than its factorization.

28357846628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66256762 (or 66256760 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 59.

The spelling of 28357846628 in words is "twenty-eight billion, three hundred fifty-seven million, eight hundred forty-six thousand, six hundred twenty-eight".