8423641144 has 8 divisors (see below), whose sum is σ = 15794327160. Its totient is φ = 4211820568.

The previous prime is 8423641123. The next prime is 8423641147. The reversal of 8423641144 is 4411463248.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8423641147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526477564 + ... + 526477579.

It is an arithmetic number, because the mean of its divisors is an integer number (1974290895).

Almost surely, 2^8423641144 is an apocalyptic number.

It is an amenable number.

8423641144 is a deficient number, since it is larger than the sum of its proper divisors (7370686016).

8423641144 is a wasteful number, since it uses less digits than its factorization.

8423641144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052955149 (or 1052955145 counting only the distinct ones).

The product of its digits is 73728, while the sum is 37.

The square root of 8423641144 is about 91780.3962946336. The cubic root of 8423641144 is about 2034.6979727920.

The spelling of 8423641144 in words is "eight billion, four hundred twenty-three million, six hundred forty-one thousand, one hundred forty-four".