9901288832 has 16 divisors (see below), whose sum is σ = 19725224100. Its totient is φ = 4950644352.

The previous prime is 9901288829. The next prime is 9901288841. The reversal of 9901288832 is 2388821099.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38676782 + ... + 38677037.

Almost surely, 2^9901288832 is an apocalyptic number.

It is an amenable number.

9901288832 is a deficient number, since it is larger than the sum of its proper divisors (9823935268).

9901288832 is an equidigital number, since it uses as much as digits as its factorization.

9901288832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77353833 (or 77353821 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 9901288832 is about 99505.2201243734. The cubic root of 9901288832 is about 2147.3223440217.

The spelling of 9901288832 in words is "nine billion, nine hundred one million, two hundred eighty-eight thousand, eight hundred thirty-two".