28422648072 has 96 divisors (see below), whose sum is σ = 94742182080. Its totient is φ = 7496081280.

The previous prime is 28422648031. The next prime is 28422648091. The reversal of 28422648072 is 27084622482.

28422648072 is a `hidden beast` number, since 2 + 84 + 2 + 26 + 480 + 72 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2162454 + ... + 2175557.

It is an arithmetic number, because the mean of its divisors is an integer number (986897730).

Almost surely, 2^28422648072 is an apocalyptic number.

It is an amenable number.

28422648072 is an abundant number, since it is smaller than the sum of its proper divisors (66319534008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28422648072 is a wasteful number, since it uses less digits than its factorization.

28422648072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4338043 (or 4338036 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 45.

The spelling of 28422648072 in words is "twenty-eight billion, four hundred twenty-two million, six hundred forty-eight thousand, seventy-two".