9901487760 has 40 divisors (see below), whose sum is σ = 30694612800. Its totient is φ = 2640396672.

The previous prime is 9901487759. The next prime is 9901487773. The reversal of 9901487760 is 677841099.

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

It is a super-2 number, since 2×9901487760² (a number of 21 digits) contains 22 as substring.

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, 20627860 + ... + 20628339.

It is an arithmetic number, because the mean of its divisors is an integer number (767365320).

Almost surely, 2^9901487760 is an apocalyptic number.

It is an amenable number.

9901487760 is an abundant number, since it is smaller than the sum of its proper divisors (20793125040).

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

9901487760 is a wasteful number, since it uses less digits than its factorization.

9901487760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41256215 (or 41256209 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 9901487760 is about 99506.2197051019. The cubic root of 9901487760 is about 2147.3367246303.

The spelling of 9901487760 in words is "nine billion, nine hundred one million, four hundred eighty-seven thousand, seven hundred sixty".