28620386072 has 64 divisors (see below), whose sum is σ = 54907200000. Its totient is φ = 13983016320.

The previous prime is 28620386009. The next prime is 28620386161. The reversal of 28620386072 is 27068302682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46236179 + ... + 46236797.

It is an arithmetic number, because the mean of its divisors is an integer number (857925000).

Almost surely, 2^28620386072 is an apocalyptic number.

It is an amenable number.

28620386072 is a deficient number, since it is larger than the sum of its proper divisors (26286813928).

28620386072 is a wasteful number, since it uses less digits than its factorization.

28620386072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 28620386072 in words is "twenty-eight billion, six hundred twenty million, three hundred eighty-six thousand, seventy-two".