326742865344 has 336 divisors, whose sum is σ = 1084397932800. Its totient is φ = 92137402368.

The previous prime is 326742865343. The next prime is 326742865451. The reversal of 326742865344 is 443568247623.

326742865344 is a `hidden beast` number, since 3 + 2 + 67 + 42 + 8 + 6 + 534 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326742865343) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100318564 + ... + 100321820.

It is an arithmetic number, because the mean of its divisors is an integer number (3227374800).

Almost surely, 2^326742865344 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 326742865344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (542198966400).

326742865344 is an abundant number, since it is smaller than the sum of its proper divisors (757655067456).

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

326742865344 is a wasteful number, since it uses less digits than its factorization.

326742865344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600 (or 3587 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 54.

The spelling of 326742865344 in words is "three hundred twenty-six billion, seven hundred forty-two million, eight hundred sixty-five thousand, three hundred forty-four".