8444518501 has 4 divisors (see below), whose sum is σ = 8444723392. Its totient is φ = 8444313612.

The previous prime is 8444518487. The next prime is 8444518507. The reversal of 8444518501 is 1058154448.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8444518501 - 2¹⁹ = 8443994213 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 (8444518507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16701 + ... + 131026.

It is an arithmetic number, because the mean of its divisors is an integer number (2111180848).

Almost surely, 2^8444518501 is an apocalyptic number.

It is an amenable number.

8444518501 is a deficient number, since it is larger than the sum of its proper divisors (204891).

8444518501 is a wasteful number, since it uses less digits than its factorization.

8444518501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204890.

The product of its (nonzero) digits is 102400, while the sum is 40.

The square root of 8444518501 is about 91894.0612934264. The cubic root of 8444518501 is about 2036.3775343071.

The spelling of 8444518501 in words is "eight billion, four hundred forty-four million, five hundred eighteen thousand, five hundred one".