8744664478 has 8 divisors (see below), whose sum is σ = 14309451000. Its totient is φ = 3974847480.

The previous prime is 8744664433. The next prime is 8744664479.

It is a happy number.

8744664478 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8744664479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198742353 + ... + 198742396.

It is an arithmetic number, because the mean of its divisors is an integer number (1788681375).

Almost surely, 2^8744664478 is an apocalyptic number.

8744664478 is a deficient number, since it is larger than the sum of its proper divisors (5564786522).

8744664478 is a wasteful number, since it uses less digits than its factorization.

8744664478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397484762.

The product of its digits is 28901376, while the sum is 58.

The square root of 8744664478 is about 93512.9107556812. The cubic root of 8744664478 is about 2060.2237226780.

The spelling of 8744664478 in words is "eight billion, seven hundred forty-four million, six hundred sixty-four thousand, four hundred seventy-eight".