9928293680 has 40 divisors (see below), whose sum is σ = 23130772512. Its totient is φ = 3963147264.

The previous prime is 9928293593. The next prime is 9928293719. The reversal of 9928293680 is 863928299.

It is a tau number, because it is divible by the number of its divisors (40).

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, 88457 + ... + 166376.

Almost surely, 2^9928293680 is an apocalyptic number.

It is an amenable number.

9928293680 is an abundant number, since it is smaller than the sum of its proper divisors (13202478832).

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

9928293680 is a wasteful number, since it uses less digits than its factorization.

9928293680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255333 (or 255327 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 56.

The square root of 9928293680 is about 99640.8233607089. The cubic root of 9928293680 is about 2149.2727794703.

The spelling of 9928293680 in words is "nine billion, nine hundred twenty-eight million, two hundred ninety-three thousand, six hundred eighty".