818448646204 has 108 divisors (see below), whose sum is σ = 1846855379376. Its totient is φ = 315776541696.

The previous prime is 818448646177. The next prime is 818448646207. The reversal of 818448646204 is 402646844818.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818448646207) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 988704 + ... + 1616920.

It is an arithmetic number, because the mean of its divisors is an integer number (17100512772).

Almost surely, 2^818448646204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 818448646204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (923427689688).

818448646204 is an abundant number, since it is smaller than the sum of its proper divisors (1028406733172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

818448646204 is a wasteful number, since it uses less digits than its factorization.

818448646204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628292 (or 628266 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 55.

The spelling of 818448646204 in words is "eight hundred eighteen billion, four hundred forty-eight million, six hundred forty-six thousand, two hundred four".