9886631920 has 40 divisors (see below), whose sum is σ = 25076095920. Its totient is φ = 3595138560.

The previous prime is 9886631897. The next prime is 9886631983. The reversal of 9886631920 is 291366889.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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, 5616525 + ... + 5618284.

It is an arithmetic number, because the mean of its divisors is an integer number (626902398).

Almost surely, 2^9886631920 is an apocalyptic number.

It is an amenable number.

9886631920 is an abundant number, since it is smaller than the sum of its proper divisors (15189464000).

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

9886631920 is a wasteful number, since it uses less digits than its factorization.

9886631920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11234833 (or 11234827 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 52.

The square root of 9886631920 is about 99431.5438882450. The cubic root of 9886631920 is about 2146.2622578763.

The spelling of 9886631920 in words is "nine billion, eight hundred eighty-six million, six hundred thirty-one thousand, nine hundred twenty".