11043622643 has 4 divisors (see below), whose sum is σ = 11624865960. Its totient is φ = 10462379328.

The previous prime is 11043622633. The next prime is 11043622657. The reversal of 11043622643 is 34622634011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34622634011 = 7 ⋅4946090573.

It is a cyclic number.

It is not a de Polignac number, because 11043622643 - 2⁴ = 11043622627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11043622633) 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, 290621630 + ... + 290621667.

It is an arithmetic number, because the mean of its divisors is an integer number (2906216490).

Almost surely, 2^11043622643 is an apocalyptic number.

11043622643 is a deficient number, since it is larger than the sum of its proper divisors (581243317).

11043622643 is an equidigital number, since it uses as much as digits as its factorization.

11043622643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581243316.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 11043622643 in words is "eleven billion, forty-three million, six hundred twenty-two thousand, six hundred forty-three".