9809125312 has 56 divisors (see below), whose sum is σ = 22265127936. Its totient is φ = 4200238848.

The previous prime is 9809125309. The next prime is 9809125327. The reversal of 9809125312 is 2135219089.

It is a tau number, because it is divible by the number of its divisors (56).

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, 538953 + ... + 556855.

Almost surely, 2^9809125312 is an apocalyptic number.

It is an amenable number.

9809125312 is an abundant number, since it is smaller than the sum of its proper divisors (12456002624).

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

9809125312 is a wasteful number, since it uses less digits than its factorization.

9809125312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19145 (or 19135 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 9809125312 is about 99041.0284276168. The cubic root of 9809125312 is about 2140.6389706931.

The spelling of 9809125312 in words is "nine billion, eight hundred nine million, one hundred twenty-five thousand, three hundred twelve".