9630725988 has 96 divisors (see below), whose sum is σ = 24654792960. Its totient is φ = 2908039680.

The previous prime is 9630725987. The next prime is 9630725989. The reversal of 9630725988 is 8895270369.

It is an interprime number because it is at equal distance from previous prime (9630725987) and next prime (9630725989).

It is a super-2 number, since 2×9630725988² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9630725987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2534506 + ... + 2538302.

It is an arithmetic number, because the mean of its divisors is an integer number (256820760).

Almost surely, 2^9630725988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9630725988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12327396480).

9630725988 is an abundant number, since it is smaller than the sum of its proper divisors (15024066972).

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

9630725988 is a wasteful number, since it uses less digits than its factorization.

9630725988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4117 (or 4115 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The square root of 9630725988 is about 98136.2623498572. The cubic root of 9630725988 is about 2127.5821704125.

The spelling of 9630725988 in words is "nine billion, six hundred thirty million, seven hundred twenty-five thousand, nine hundred eighty-eight".