9171013640 has 16 divisors (see below), whose sum is σ = 20634780780. Its totient is φ = 3668405440.

The previous prime is 9171013639. The next prime is 9171013741. The reversal of 9171013640 is 463101719.

It can be written as a sum of positive squares in 2 ways, for example, as 9149687716 + 21325924 = 95654^2 + 4618^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9171013597 and 9171013606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114637631 + ... + 114637710.

Almost surely, 2^9171013640 is an apocalyptic number.

It is an amenable number.

9171013640 is an abundant number, since it is smaller than the sum of its proper divisors (11463767140).

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

9171013640 is a wasteful number, since it uses less digits than its factorization.

9171013640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229275352 (or 229275348 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 9171013640 is about 95765.4094127937. The cubic root of 9171013640 is about 2093.1761602099.

The spelling of 9171013640 in words is "nine billion, one hundred seventy-one million, thirteen thousand, six hundred forty".