9889197648 has 80 divisors (see below), whose sum is σ = 28145644992. Its totient is φ = 2967040000.

The previous prime is 9889197629. The next prime is 9889197697. The reversal of 9889197648 is 8467919889.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39393 + ... + 146048.

Almost surely, 2^9889197648 is an apocalyptic number.

It is an amenable number.

9889197648 is an abundant number, since it is smaller than the sum of its proper divisors (18256447344).

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

9889197648 is a wasteful number, since it uses less digits than its factorization.

9889197648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185564 (or 185558 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 69.

The square root of 9889197648 is about 99444.4450333954. The cubic root of 9889197648 is about 2146.4479041417.

The spelling of 9889197648 in words is "nine billion, eight hundred eighty-nine million, one hundred ninety-seven thousand, six hundred forty-eight".