28980509696 has 44 divisors (see below), whose sum is σ = 60981849480. Its totient is φ = 13727600640.

The previous prime is 28980509687. The next prime is 28980509717. The reversal of 28980509696 is 69690508982.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

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, 725315 + ... + 764226.

Almost surely, 2^28980509696 is an apocalyptic number.

It is an amenable number.

28980509696 is an abundant number, since it is smaller than the sum of its proper divisors (32001339784).

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

28980509696 is a wasteful number, since it uses less digits than its factorization.

28980509696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489580 (or 1489562 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 62.

The spelling of 28980509696 in words is "twenty-eight billion, nine hundred eighty million, five hundred nine thousand, six hundred ninety-six".