28107845488 has 20 divisors (see below), whose sum is σ = 54530536608. Its totient is φ = 14035448960.

The previous prime is 28107845461. The next prime is 28107845501. The reversal of 28107845488 is 88454870182.

It is a happy number.

It is a congruent number.

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, 1142056 + ... + 1166407.

Almost surely, 2^28107845488 is an apocalyptic number.

It is an amenable number.

28107845488 is a deficient number, since it is larger than the sum of its proper divisors (26422691120).

28107845488 is a wasteful number, since it uses less digits than its factorization.

28107845488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309232 (or 2309226 counting only the distinct ones).

The product of its (nonzero) digits is 4587520, while the sum is 55.

The spelling of 28107845488 in words is "twenty-eight billion, one hundred seven million, eight hundred forty-five thousand, four hundred eighty-eight".