28944597672 has 40 divisors (see below), whose sum is σ = 81071675850. Its totient is φ = 9648199008.

The previous prime is 28944597631. The next prime is 28944597691. The reversal of 28944597672 is 27679544982.

28944597672 is a `hidden beast` number, since 28 + 94 + 459 + 7 + 6 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25301992356 + 3642605316 = 159066^2 + 60354^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 22333147 + ... + 22334442.

Almost surely, 2^28944597672 is an apocalyptic number.

It is an amenable number.

28944597672 is an abundant number, since it is smaller than the sum of its proper divisors (52127078178).

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

28944597672 is a wasteful number, since it uses less digits than its factorization.

28944597672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44667607 (or 44667594 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The spelling of 28944597672 in words is "twenty-eight billion, nine hundred forty-four million, five hundred ninety-seven thousand, six hundred seventy-two".