9712265789 has 4 divisors (see below), whose sum is σ = 9754677660. Its totient is φ = 9669853920.

The previous prime is 9712265743. The next prime is 9712265809. The reversal of 9712265789 is 9875622179.

9712265789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9875622179 = 16097 ⋅613507.

It can be written as a sum of positive squares in 2 ways, for example, as 7147349764 + 2564916025 = 84542^2 + 50645^2 .

It is a cyclic number.

It is not a de Polignac number, because 9712265789 - 2⁸ = 9712265533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9712265089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21205592 + ... + 21206049.

It is an arithmetic number, because the mean of its divisors is an integer number (2438669415).

Almost surely, 2^9712265789 is an apocalyptic number.

It is an amenable number.

9712265789 is a deficient number, since it is larger than the sum of its proper divisors (42411871).

9712265789 is a wasteful number, since it uses less digits than its factorization.

9712265789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42411870.

The product of its digits is 3810240, while the sum is 56.

The square root of 9712265789 is about 98550.8284541535. The cubic root of 9712265789 is about 2133.5697879808.

The spelling of 9712265789 in words is "nine billion, seven hundred twelve million, two hundred sixty-five thousand, seven hundred eighty-nine".