9438841765 has 4 divisors (see below), whose sum is σ = 11326610124. Its totient is φ = 7551073408.

The previous prime is 9438841723. The next prime is 9438841799. The reversal of 9438841765 is 5671488349.

9438841765 is digitally balanced in base 3, 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: 5671488349 = 33503 ⋅169283.

It can be written as a sum of positive squares in 2 ways, for example, as 1012703329 + 8426138436 = 31823^2 + 91794^2 .

It is a cyclic number.

It is not a de Polignac number, because 9438841765 - 2⁹ = 9438841253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943884172 + ... + 943884181.

It is an arithmetic number, because the mean of its divisors is an integer number (2831652531).

Almost surely, 2^9438841765 is an apocalyptic number.

It is an amenable number.

9438841765 is a deficient number, since it is larger than the sum of its proper divisors (1887768359).

9438841765 is a wasteful number, since it uses less digits than its factorization.

9438841765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887768358.

The product of its digits is 5806080, while the sum is 55.

The square root of 9438841765 is about 97153.7017565466. The cubic root of 9438841765 is about 2113.3571710937.

The spelling of 9438841765 in words is "nine billion, four hundred thirty-eight million, eight hundred forty-one thousand, seven hundred sixty-five".