9930928078 has 16 divisors (see below), whose sum is σ = 15269382576. Its totient is φ = 4841287360.

The previous prime is 9930928043. The next prime is 9930928099. The reversal of 9930928078 is 8708290399.

It is a congruent number.

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, 94725 + ... + 169807.

It is an arithmetic number, because the mean of its divisors is an integer number (954336411).

Almost surely, 2^9930928078 is an apocalyptic number.

9930928078 is a deficient number, since it is larger than the sum of its proper divisors (5338454498).

9930928078 is a wasteful number, since it uses less digits than its factorization.

9930928078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76739.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The square root of 9930928078 is about 99654.0419551560. The cubic root of 9930928078 is about 2149.4628604441.

The spelling of 9930928078 in words is "nine billion, nine hundred thirty million, nine hundred twenty-eight thousand, seventy-eight".