818925304068 has 72 divisors (see below), whose sum is σ = 2087892326520. Its totient is φ = 270628945920.

The previous prime is 818925304063. The next prime is 818925304091. The reversal of 818925304068 is 860403529818.

818925304068 is a `hidden beast` number, since 8 + 1 + 8 + 9 + 2 + 530 + 40 + 68 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 356609620224 + 462315683844 = 597168^2 + 679938^2 .

It is not an unprimeable number, because it can be changed into a prime (818925304061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3684748 + ... + 3900668.

It is an arithmetic number, because the mean of its divisors is an integer number (28998504535).

Almost surely, 2^818925304068 is an apocalyptic number.

It is an amenable number.

818925304068 is an abundant number, since it is smaller than the sum of its proper divisors (1268967022452).

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

818925304068 is a wasteful number, since it uses less digits than its factorization.

818925304068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216837 (or 216832 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 818925304068 in words is "eight hundred eighteen billion, nine hundred twenty-five million, three hundred four thousand, sixty-eight".