9928081264 has 40 divisors (see below), whose sum is σ = 19611914400. Its totient is φ = 4867070208.

The previous prime is 9928081259. The next prime is 9928081279. The reversal of 9928081264 is 4621808299.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1649749 + ... + 1655755.

It is an arithmetic number, because the mean of its divisors is an integer number (490297860).

Almost surely, 2^9928081264 is an apocalyptic number.

It is an amenable number.

9928081264 is a deficient number, since it is larger than the sum of its proper divisors (9683833136).

9928081264 is a wasteful number, since it uses less digits than its factorization.

9928081264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8017 (or 8011 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 9928081264 is about 99639.7574465133. The cubic root of 9928081264 is about 2149.2574514526.

The spelling of 9928081264 in words is "nine billion, nine hundred twenty-eight million, eighty-one thousand, two hundred sixty-four".