9978073264 has 20 divisors (see below), whose sum is σ = 19339655040. Its totient is φ = 4987194560.

The previous prime is 9978073243. The next prime is 9978073267. The reversal of 9978073264 is 4623708799.

It is a super-2 number, since 2×9978073264² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9978073267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69904 + ... + 157615.

It is an arithmetic number, because the mean of its divisors is an integer number (966982752).

Almost surely, 2^9978073264 is an apocalyptic number.

It is an amenable number.

9978073264 is a deficient number, since it is larger than the sum of its proper divisors (9361581776).

9978073264 is a wasteful number, since it uses less digits than its factorization.

9978073264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230268 (or 230262 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 55.

The square root of 9978073264 is about 99890.3061563033. The cubic root of 9978073264 is about 2152.8588803687.

The spelling of 9978073264 in words is "nine billion, nine hundred seventy-eight million, seventy-three thousand, two hundred sixty-four".