10443474721 has 4 divisors (see below), whose sum is σ = 10444408852. Its totient is φ = 10442540592.

The previous prime is 10443474707. The next prime is 10443474739. The reversal of 10443474721 is 12747434401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8979647121 + 1463827600 = 94761^2 + 38260^2 .

It is a cyclic number.

It is not a de Polignac number, because 10443474721 - 2⁷ = 10443474593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10443474421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450090 + ... + 472723.

It is an arithmetic number, because the mean of its divisors is an integer number (2611102213).

Almost surely, 2^10443474721 is an apocalyptic number.

It is an amenable number.

10443474721 is a deficient number, since it is larger than the sum of its proper divisors (934131).

10443474721 is an equidigital number, since it uses as much as digits as its factorization.

10443474721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934130.

The product of its (nonzero) digits is 75264, while the sum is 37.

The spelling of 10443474721 in words is "ten billion, four hundred forty-three million, four hundred seventy-four thousand, seven hundred twenty-one".