9261742665 has 32 divisors (see below), whose sum is σ = 17016062976. Its totient is φ = 4213863360.

The previous prime is 9261742661. The next prime is 9261742691. The reversal of 9261742665 is 5662471629.

It is not a de Polignac number, because 9261742665 - 2² = 9261742661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9261742661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186867 + ... + 231176.

It is an arithmetic number, because the mean of its divisors is an integer number (531751968).

Almost surely, 2^9261742665 is an apocalyptic number.

It is an amenable number.

9261742665 is a deficient number, since it is larger than the sum of its proper divisors (7754320311).

9261742665 is a wasteful number, since it uses less digits than its factorization.

9261742665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418269.

The product of its digits is 1088640, while the sum is 48.

The square root of 9261742665 is about 96237.9481545612. The cubic root of 9261742665 is about 2100.0561334202.

The spelling of 9261742665 in words is "nine billion, two hundred sixty-one million, seven hundred forty-two thousand, six hundred sixty-five".