8444518454 has 4 divisors (see below), whose sum is σ = 12666777684. Its totient is φ = 4222259226.

The previous prime is 8444518447. The next prime is 8444518457. The reversal of 8444518454 is 4548154448.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 8444518399 and 8444518408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8444518457) 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 as a sum of consecutive naturals, namely, 2111129612 + ... + 2111129615.

It is an arithmetic number, because the mean of its divisors is an integer number (3166694421).

Almost surely, 2^8444518454 is an apocalyptic number.

8444518454 is a deficient number, since it is larger than the sum of its proper divisors (4222259230).

8444518454 is a wasteful number, since it uses less digits than its factorization.

8444518454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4222259229.

The product of its digits is 1638400, while the sum is 47.

The square root of 8444518454 is about 91894.0610376971. The cubic root of 8444518454 is about 2036.3775305292.

The spelling of 8444518454 in words is "eight billion, four hundred forty-four million, five hundred eighteen thousand, four hundred fifty-four".