326225288688 has 320 divisors, whose sum is σ = 971572815360. Its totient is φ = 93992251392.

The previous prime is 326225288681. The next prime is 326225288689. The reversal of 326225288688 is 886882522623.

It is a super-2 number, since 2×326225288688² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326225288681) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 507348495 + ... + 507349137.

It is an arithmetic number, because the mean of its divisors is an integer number (3036165048).

Almost surely, 2^326225288688 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 326225288688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485786407680).

326225288688 is an abundant number, since it is smaller than the sum of its proper divisors (645347526672).

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

326225288688 is a wasteful number, since it uses less digits than its factorization.

326225288688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 961 counting only the distinct ones).

The product of its digits is 35389440, while the sum is 60.

The spelling of 326225288688 in words is "three hundred twenty-six billion, two hundred twenty-five million, two hundred eighty-eight thousand, six hundred eighty-eight".