9444634623 has 24 divisors (see below), whose sum is σ = 14260613120. Its totient is φ = 6016168080.

The previous prime is 9444634579. The next prime is 9444634637. The reversal of 9444634623 is 3264364449.

It is a happy number.

9444634623 is a `hidden beast` number, since 9 + 4 + 4 + 4 + 634 + 6 + 2 + 3 = 666.

It is not a de Polignac number, because 9444634623 - 2⁶ = 9444634559 is a prime.

It is a super-2 number, since 2×9444634623² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9444634673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192211 + ... + 236292.

Almost surely, 2^9444634623 is an apocalyptic number.

9444634623 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

9444634623 is a deficient number, since it is larger than the sum of its proper divisors (4815978497).

9444634623 is a wasteful number, since it uses less digits than its factorization.

9444634623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428619 (or 428616 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 45.

The square root of 9444634623 is about 97183.5100364254. The cubic root of 9444634623 is about 2113.7894230821.

The spelling of 9444634623 in words is "nine billion, four hundred forty-four million, six hundred thirty-four thousand, six hundred twenty-three".