9913045920 has 96 divisors (see below), whose sum is σ = 32070100608. Its totient is φ = 2572028928.

The previous prime is 9913045897. The next prime is 9913045939. The reversal of 9913045920 is 295403199.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261324 + ... + 296843.

It is an arithmetic number, because the mean of its divisors is an integer number (334063548).

Almost surely, 2^9913045920 is an apocalyptic number.

It is an amenable number.

9913045920 is an abundant number, since it is smaller than the sum of its proper divisors (22157054688).

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

9913045920 is a wasteful number, since it uses less digits than its factorization.

9913045920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558222 (or 558214 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 9913045920 is about 99564.2803418977. The cubic root of 9913045920 is about 2148.1719395325.

The spelling of 9913045920 in words is "nine billion, nine hundred thirteen million, forty-five thousand, nine hundred twenty".