28865290928 has 10 divisors (see below), whose sum is σ = 55926501204. Its totient is φ = 14432645456.

The previous prime is 28865290919. The next prime is 28865290933. The reversal of 28865290928 is 82909256882.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902040326 + ... + 902040357.

Almost surely, 2^28865290928 is an apocalyptic number.

It is an amenable number.

28865290928 is a deficient number, since it is larger than the sum of its proper divisors (27061210276).

28865290928 is a wasteful number, since it uses less digits than its factorization.

28865290928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804080691 (or 1804080685 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 59.

The spelling of 28865290928 in words is "twenty-eight billion, eight hundred sixty-five million, two hundred ninety thousand, nine hundred twenty-eight".