9643734443 has 24 divisors (see below), whose sum is σ = 11620065600. Its totient is φ = 7970702208.

The previous prime is 9643734431. The next prime is 9643734461. The reversal of 9643734443 is 3444373469.

It is not a de Polignac number, because 9643734443 - 2¹⁰ = 9643733419 is a prime.

It is a super-2 number, since 2×9643734443² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9643734403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1213838 + ... + 1221756.

It is an arithmetic number, because the mean of its divisors is an integer number (484169400).

Almost surely, 2^9643734443 is an apocalyptic number.

9643734443 is a deficient number, since it is larger than the sum of its proper divisors (1976331157).

9643734443 is a wasteful number, since it uses less digits than its factorization.

9643734443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8819 (or 8812 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 47.

The square root of 9643734443 is about 98202.5174982801. The cubic root of 9643734443 is about 2128.5396650385.

The spelling of 9643734443 in words is "nine billion, six hundred forty-three million, seven hundred thirty-four thousand, four hundred forty-three".