9197497845 has 48 divisors (see below), whose sum is σ = 16918340400. Its totient is φ = 4606328832.

The previous prime is 9197497819. The next prime is 9197497891. The reversal of 9197497845 is 5487947919.

It can be written as a sum of positive squares in 8 ways, for example, as 37859409 + 9159638436 = 6153^2 + 95706^2 .

It is not a de Polignac number, because 9197497845 - 2⁶ = 9197497781 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 330097 + ... + 356873.

It is an arithmetic number, because the mean of its divisors is an integer number (352465425).

Almost surely, 2^9197497845 is an apocalyptic number.

It is an amenable number.

9197497845 is a deficient number, since it is larger than the sum of its proper divisors (7720842555).

9197497845 is a wasteful number, since it uses less digits than its factorization.

9197497845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27254 (or 27251 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 63.

The square root of 9197497845 is about 95903.5861946778. The cubic root of 9197497845 is about 2095.1891266804.

The spelling of 9197497845 in words is "nine billion, one hundred ninety-seven million, four hundred ninety-seven thousand, eight hundred forty-five".