322511125818 has 64 divisors (see below), whose sum is σ = 759000238848. Its totient is φ = 89429598720.

The previous prime is 322511125813. The next prime is 322511125829. The reversal of 322511125818 is 818521115223.

It is a happy number.

322511125818 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (322511125813) 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, 355558 + ... + 878318.

It is an arithmetic number, because the mean of its divisors is an integer number (11859378732).

Almost surely, 2^322511125818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322511125818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379500119424).

322511125818 is an abundant number, since it is smaller than the sum of its proper divisors (436489113030).

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

322511125818 is a wasteful number, since it uses less digits than its factorization.

322511125818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523207.

The product of its digits is 38400, while the sum is 39.

The spelling of 322511125818 in words is "three hundred twenty-two billion, five hundred eleven million, one hundred twenty-five thousand, eight hundred eighteen".