9745912565 has 16 divisors (see below), whose sum is σ = 11863843200. Its totient is φ = 7684966080.

The previous prime is 9745912559. The next prime is 9745912577. The reversal of 9745912565 is 5652195479.

It is a de Polignac number, because none of the positive numbers 2^k-9745912565 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 15 ways as a sum of consecutive naturals, for example, 60695 + ... + 152235.

It is an arithmetic number, because the mean of its divisors is an integer number (741490200).

Almost surely, 2^9745912565 is an apocalyptic number.

It is an amenable number.

9745912565 is a deficient number, since it is larger than the sum of its proper divisors (2117930635).

9745912565 is a wasteful number, since it uses less digits than its factorization.

9745912565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91852.

The product of its digits is 3402000, while the sum is 53.

The square root of 9745912565 is about 98721.3885893022. The cubic root of 9745912565 is about 2136.0307655382.

The spelling of 9745912565 in words is "nine billion, seven hundred forty-five million, nine hundred twelve thousand, five hundred sixty-five".