9441841726564 has 45 divisors (see below), whose sum is σ = 17902079271951. Its totient is φ = 4357293754320.

The previous prime is 9441841726561. The next prime is 9441841726607. The reversal of 9441841726564 is 4656271481449.

The square root of 9441841726564 is 3072758.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 4681415940964 + 4760425785600 = 2163658^2 + 2181840^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9441841726561) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1038587659 + ... + 1038596749.

Almost surely, 2^{9441841726564} is an apocalyptic number.

9441841726564 is the 3072758-th square number.

It is an amenable number.

9441841726564 is a deficient number, since it is larger than the sum of its proper divisors (8460237545387).

9441841726564 is an frugal number, since it uses more digits than its factorization.

9441841726564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18238 (or 9106 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 61.

The spelling of 9441841726564 in words is "nine trillion, four hundred forty-one billion, eight hundred forty-one million, seven hundred twenty-six thousand, five hundred sixty-four".