326251884672 has 384 divisors, whose sum is σ = 1138502131200. Its totient is φ = 91683809280.

The previous prime is 326251884631. The next prime is 326251884677. The reversal of 326251884672 is 276488152623.

326251884672 is a `hidden beast` number, since 3 + 2 + 62 + 518 + 8 + 4 + 67 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (326251884677) 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, 10314193 + ... + 10345775.

It is an arithmetic number, because the mean of its divisors is an integer number (2964849300).

Almost surely, 2^326251884672 is an apocalyptic number.

326251884672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326251884672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569251065600).

326251884672 is an abundant number, since it is smaller than the sum of its proper divisors (812250246528).

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

326251884672 is a wasteful number, since it uses less digits than its factorization.

326251884672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31681 (or 31656 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 326251884672 in words is "three hundred twenty-six billion, two hundred fifty-one million, eight hundred eighty-four thousand, six hundred seventy-two".