818906833536 has 256 divisors, whose sum is σ = 2542845312000. Its totient is φ = 230740705280.

The previous prime is 818906833531. The next prime is 818906833567. The reversal of 818906833536 is 635338609818.

It is a self number, because there is not a number n which added to its sum of digits gives 818906833536.

It is not an unprimeable number, because it can be changed into a prime (818906833531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5891365 + ... + 6028763.

It is an arithmetic number, because the mean of its divisors is an integer number (9932989500).

Almost surely, 2^818906833536 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 818906833536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1271422656000).

818906833536 is an abundant number, since it is smaller than the sum of its proper divisors (1723938478464).

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

818906833536 is a wasteful number, since it uses less digits than its factorization.

818906833536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137527 (or 137515 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 60.

The spelling of 818906833536 in words is "eight hundred eighteen billion, nine hundred six million, eight hundred thirty-three thousand, five hundred thirty-six".