9720124488 has 24 divisors (see below), whose sum is σ = 26325337350. Its totient is φ = 3240041472.

The previous prime is 9720124471. The next prime is 9720124489. The reversal of 9720124488 is 8844210279.

It can be written as a sum of positive squares in only one way, i.e., 7666403364 + 2053721124 = 87558^2 + 45318^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (9720124489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67500793 + ... + 67500936.

Almost surely, 2^9720124488 is an apocalyptic number.

It is an amenable number.

9720124488 is an abundant number, since it is smaller than the sum of its proper divisors (16605212862).

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

9720124488 is a wasteful number, since it uses less digits than its factorization.

9720124488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135001741 (or 135001734 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 9720124488 is about 98590.6916904431. The cubic root of 9720124488 is about 2134.1450935715.

The spelling of 9720124488 in words is "nine billion, seven hundred twenty million, one hundred twenty-four thousand, four hundred eighty-eight".