9747512988 has 24 divisors (see below), whose sum is σ = 22746192000. Its totient is φ = 3248886000.

The previous prime is 9747512987. The next prime is 9747513029. The reversal of 9747512988 is 8892157479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9747512987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142513 + ... + 199511.

It is an arithmetic number, because the mean of its divisors is an integer number (947758000).

Almost surely, 2^9747512988 is an apocalyptic number.

It is an amenable number.

9747512988 is an abundant number, since it is smaller than the sum of its proper divisors (12998679012).

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

9747512988 is a wasteful number, since it uses less digits than its factorization.

9747512988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71257 (or 71255 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 60.

The square root of 9747512988 is about 98729.4940126809. The cubic root of 9747512988 is about 2136.1476817542.

The spelling of 9747512988 in words is "nine billion, seven hundred forty-seven million, five hundred twelve thousand, nine hundred eighty-eight".