818745869376 has 140 divisors (see below), whose sum is σ = 2569785361308. Its totient is φ = 256861421568.

The previous prime is 818745869329. The next prime is 818745869377. The reversal of 818745869376 is 673968547818.

818745869376 is a `hidden beast` number, since 8 + 1 + 8 + 7 + 4 + 586 + 9 + 37 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 260736869376 + 558009000000 = 510624^2 + 747000^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (818745869377) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4557081 + ... + 4733336.

Almost surely, 2^818745869376 is an apocalyptic number.

It is an amenable number.

818745869376 is an abundant number, since it is smaller than the sum of its proper divisors (1751039491932).

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

818745869376 is a wasteful number, since it uses less digits than its factorization.

818745869376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9290458 (or 9290439 counting only the distinct ones).

The product of its digits is 487710720, while the sum is 72.

The spelling of 818745869376 in words is "eight hundred eighteen billion, seven hundred forty-five million, eight hundred sixty-nine thousand, three hundred seventy-six".