326930521872 has 80 divisors (see below), whose sum is σ = 858704394560. Its totient is φ = 107154316800.

The previous prime is 326930521843. The next prime is 326930521901. The reversal of 326930521872 is 278125039623.

It is an interprime number because it is at equal distance from previous prime (326930521843) and next prime (326930521901).

It is a super-2 number, since 2×326930521872² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9525222 + ... + 9559482.

It is an arithmetic number, because the mean of its divisors is an integer number (10733804932).

Almost surely, 2^326930521872 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 326930521872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429352197280).

326930521872 is an abundant number, since it is smaller than the sum of its proper divisors (531773872688).

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

326930521872 is a wasteful number, since it uses less digits than its factorization.

326930521872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37592 (or 37586 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 326930521872 in words is "three hundred twenty-six billion, nine hundred thirty million, five hundred twenty-one thousand, eight hundred seventy-two".