9972708140 has 24 divisors (see below), whose sum is σ = 20945036112. Its totient is φ = 3988635840.

The previous prime is 9972708071. The next prime is 9972708143. The reversal of 9972708140 is 418072799.

9972708140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (9972708143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200222 + ... + 245018.

It is an arithmetic number, because the mean of its divisors is an integer number (872709838).

Almost surely, 2^9972708140 is an apocalyptic number.

It is an amenable number.

9972708140 is an abundant number, since it is smaller than the sum of its proper divisors (10972327972).

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

9972708140 is a wasteful number, since it uses less digits than its factorization.

9972708140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55937 (or 55935 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 9972708140 is about 99863.4474670287. The cubic root of 9972708140 is about 2152.4729533019.

The spelling of 9972708140 in words is "nine billion, nine hundred seventy-two million, seven hundred eight thousand, one hundred forty".