10743944409 has 63 divisors (see below), whose sum is σ = 17756968719. Its totient is φ = 6492823920.

The previous prime is 10743944377. The next prime is 10743944467. The reversal of 10743944409 is 90444934701.

The square root of 10743944409 is 103653.

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

It can be written as a sum of positive squares in only one way, i.e., 7885972809 + 2857971600 = 88803^2 + 53460^2 .

It is not a de Polignac number, because 10743944409 - 2⁵ = 10743944377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10743944509) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 30784767 + ... + 30785115.

Almost surely, 2^10743944409 is an apocalyptic number.

10743944409 is the 103653-rd square number.

10743944409 is the 51827-th centered octagonal number.

It is an amenable number.

10743944409 is a deficient number, since it is larger than the sum of its proper divisors (7013024310).

10743944409 is an frugal number, since it uses more digits than its factorization.

10743944409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 10743944409 in words is "ten billion, seven hundred forty-three million, nine hundred forty-four thousand, four hundred nine".