28469966736 has 40 divisors (see below), whose sum is σ = 73787020384. Its totient is φ = 9459072000.

The previous prime is 28469966711. The next prime is 28469966747. The reversal of 28469966736 is 63766996482.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951265 + ... + 980736.

Almost surely, 2^28469966736 is an apocalyptic number.

It is an amenable number.

28469966736 is an abundant number, since it is smaller than the sum of its proper divisors (45317053648).

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

28469966736 is a wasteful number, since it uses less digits than its factorization.

28469966736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932319 (or 1932313 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 66.

The spelling of 28469966736 in words is "twenty-eight billion, four hundred sixty-nine million, nine hundred sixty-six thousand, seven hundred thirty-six".