9897771195 has 96 divisors (see below), whose sum is σ = 20237817600. Its totient is φ = 4427845632.

The previous prime is 9897771181. The next prime is 9897771227. The reversal of 9897771195 is 5911777989.

It is not a de Polignac number, because 9897771195 - 2⁷ = 9897771067 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 271246 + ... + 305564.

It is an arithmetic number, because the mean of its divisors is an integer number (210810600).

Almost surely, 2^9897771195 is an apocalyptic number.

9897771195 is an abundant number, since it is smaller than the sum of its proper divisors (10340046405).

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

9897771195 is a wasteful number, since it uses less digits than its factorization.

9897771195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34389 (or 34386 counting only the distinct ones).

The product of its digits is 10001880, while the sum is 63.

The square root of 9897771195 is about 99487.5429136734. The cubic root of 9897771195 is about 2147.0680203895.

The spelling of 9897771195 in words is "nine billion, eight hundred ninety-seven million, seven hundred seventy-one thousand, one hundred ninety-five".