9491628140 has 12 divisors (see below), whose sum is σ = 19932419136. Its totient is φ = 3796651248.

The previous prime is 9491628137. The next prime is 9491628161. The reversal of 9491628140 is 418261949.

9491628140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 9491628091 and 9491628100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237290684 + ... + 237290723.

It is an arithmetic number, because the mean of its divisors is an integer number (1661034928).

Almost surely, 2^9491628140 is an apocalyptic number.

It is an amenable number.

9491628140 is an abundant number, since it is smaller than the sum of its proper divisors (10440790996).

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

9491628140 is a wasteful number, since it uses less digits than its factorization.

9491628140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474581416 (or 474581414 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 9491628140 is about 97424.9872465991. The cubic root of 9491628140 is about 2117.2894738117.

The spelling of 9491628140 in words is "nine billion, four hundred ninety-one million, six hundred twenty-eight thousand, one hundred forty".