9660974840 has 64 divisors (see below), whose sum is σ = 24961392000. Its totient is φ = 3328179840.

The previous prime is 9660974837. The next prime is 9660974849. The reversal of 9660974840 is 484790669.

It is a happy number.

It is a super-2 number, since 2×9660974840² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9660974849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569450 + ... + 586169.

It is an arithmetic number, because the mean of its divisors is an integer number (390021750).

Almost surely, 2^9660974840 is an apocalyptic number.

It is an amenable number.

9660974840 is an abundant number, since it is smaller than the sum of its proper divisors (15300417160).

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

9660974840 is a wasteful number, since it uses less digits than its factorization.

9660974840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155660 (or 1155656 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 53.

The square root of 9660974840 is about 98290.2581134061. The cubic root of 9660974840 is about 2129.8073282634.

The spelling of 9660974840 in words is "nine billion, six hundred sixty million, nine hundred seventy-four thousand, eight hundred forty".