869994622322532 has 144 divisors (see below), whose sum is σ = 2518055385431040. Its totient is φ = 248101450776576.

The previous prime is 869994622322531. The next prime is 869994622322543. The reversal of 869994622322532 is 235223226499968.

869994622322532 is a `hidden beast` number, since 8 + 6 + 9 + 9 + 9 + 4 + 62 + 2 + 3 + 22 + 532 = 666.

It is not an unprimeable number, because it can be changed into a prime (869994622322531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1137688333 + ... + 1138452779.

It is an arithmetic number, because the mean of its divisors is an integer number (17486495732160).

Almost surely, 2^{869994622322532} 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 869994622322532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1259027692715520).

869994622322532 is an abundant number, since it is smaller than the sum of its proper divisors (1648060763108508).

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

869994622322532 is a wasteful number, since it uses less digits than its factorization.

869994622322532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772970 (or 772965 counting only the distinct ones).

The product of its digits is 1209323520, while the sum is 72.

The spelling of 869994622322532 in words is "eight hundred sixty-nine trillion, nine hundred ninety-four billion, six hundred twenty-two million, three hundred twenty-two thousand, five hundred thirty-two".