9913489632 has 72 divisors (see below), whose sum is σ = 28669357080. Its totient is φ = 3248482560.

The previous prime is 9913489631. The next prime is 9913489637. The reversal of 9913489632 is 2369843199.

9913489632 is a `hidden beast` number, since 99 + 13 + 489 + 63 + 2 = 666.

9913489632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9913489631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274719 + ... + 308702.

It is an arithmetic number, because the mean of its divisors is an integer number (398185515).

Almost surely, 2^9913489632 is an apocalyptic number.

It is an amenable number.

9913489632 is an abundant number, since it is smaller than the sum of its proper divisors (18755867448).

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

9913489632 is a wasteful number, since it uses less digits than its factorization.

9913489632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583496 (or 583485 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 9913489632 is about 99566.5085859698. The cubic root of 9913489632 is about 2148.2039900732.

The spelling of 9913489632 in words is "nine billion, nine hundred thirteen million, four hundred eighty-nine thousand, six hundred thirty-two".