8718143641 has 3 divisors (see below), whose sum is σ = 8718237013. Its totient is φ = 8718050270.

The previous prime is 8718143639. The next prime is 8718143653. The reversal of 8718143641 is 1463418178.

The square root of 8718143641 is 93371.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 8718143641 - 2¹ = 8718143639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8718143341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 46686 + ... + 140056.

Almost surely, 2^8718143641 is an apocalyptic number.

8718143641 is the 93371-st square number.

8718143641 is the 46686-th centered octagonal number.

It is an amenable number.

8718143641 is a deficient number, since it is larger than the sum of its proper divisors (93372).

8718143641 is an frugal number, since it uses more digits than its factorization.

8718143641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186742 (or 93371 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The cubic root of 8718143641 is about 2058.1388633062.

The spelling of 8718143641 in words is "eight billion, seven hundred eighteen million, one hundred forty-three thousand, six hundred forty-one".