326561004760 has 64 divisors (see below), whose sum is σ = 758932312320. Its totient is φ = 126332705280.

The previous prime is 326561004743. The next prime is 326561004779. The reversal of 326561004760 is 67400165623.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1949442 + ... + 2110318.

It is an arithmetic number, because the mean of its divisors is an integer number (11858317380).

Almost surely, 2^326561004760 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 326561004760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379466156160).

326561004760 is an abundant number, since it is smaller than the sum of its proper divisors (432371307560).

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

326561004760 is a wasteful number, since it uses less digits than its factorization.

326561004760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162556 (or 162552 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 326561004760 in words is "three hundred twenty-six billion, five hundred sixty-one million, four thousand, seven hundred sixty".