9904861632 has 56 divisors (see below), whose sum is σ = 26261568000. Its totient is φ = 3294697216.

The previous prime is 9904861627. The next prime is 9904861663. The reversal of 9904861632 is 2361684099.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38119 + ... + 145817.

Almost surely, 2^9904861632 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 9904861632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13130784000).

9904861632 is an abundant number, since it is smaller than the sum of its proper divisors (16356706368).

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

9904861632 is a wasteful number, since it uses less digits than its factorization.

9904861632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108193 (or 108183 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 9904861632 is about 99523.1713321074. The cubic root of 9904861632 is about 2147.5805942622.

The spelling of 9904861632 in words is "nine billion, nine hundred four million, eight hundred sixty-one thousand, six hundred thirty-two".