8484665664849 has 16 divisors (see below), whose sum is σ = 12383452476864. Its totient is φ = 5124671364800.

The previous prime is 8484665664833. The next prime is 8484665664857. The reversal of 8484665664849 is 9484665664848.

It is a cyclic number.

It is not a de Polignac number, because 8484665664849 - 2⁴ = 8484665664833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8484665664809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438746442 + ... + 438765779.

It is an arithmetic number, because the mean of its divisors is an integer number (773965779804).

Almost surely, 2^{8484665664849} is an apocalyptic number.

It is an amenable number.

8484665664849 is a deficient number, since it is larger than the sum of its proper divisors (3898786812015).

8484665664849 is a wasteful number, since it uses less digits than its factorization.

8484665664849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877512528.

The product of its digits is 7644119040, while the sum is 78.

Subtracting 8484665664849 from its reverse (9484665664848), we obtain a palindrome (999999999999).

The spelling of 8484665664849 in words is "eight trillion, four hundred eighty-four billion, six hundred sixty-five million, six hundred sixty-four thousand, eight hundred forty-nine".