9644940943 has 8 divisors (see below), whose sum is σ = 10576843776. Its totient is φ = 8722219800.

The previous prime is 9644940919. The next prime is 9644941001. The reversal of 9644940943 is 3490494469.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9644940943 - 2¹⁷ = 9644809871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9644940143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2293221 + ... + 2297422.

It is an arithmetic number, because the mean of its divisors is an integer number (1322105472).

Almost surely, 2^9644940943 is an apocalyptic number.

9644940943 is a deficient number, since it is larger than the sum of its proper divisors (931902833).

9644940943 is a wasteful number, since it uses less digits than its factorization.

9644940943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4590845.

The product of its (nonzero) digits is 3359232, while the sum is 52.

The square root of 9644940943 is about 98208.6602240352. The cubic root of 9644940943 is about 2128.6284265044.

The spelling of 9644940943 in words is "nine billion, six hundred forty-four million, nine hundred forty thousand, nine hundred forty-three".