326979918048 has 576 divisors, whose sum is σ = 1072266854400. Its totient is φ = 86790832128.

The previous prime is 326979918047. The next prime is 326979918061. The reversal of 326979918048 is 840819979623.

It is a super-2 number, since 2×326979918048² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 326979918048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326979918043) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 728240128 + ... + 728240576.

It is an arithmetic number, because the mean of its divisors is an integer number (1861574400).

Almost surely, 2^326979918048 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 326979918048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (536133427200).

326979918048 is an abundant number, since it is smaller than the sum of its proper divisors (745286936352).

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

326979918048 is a wasteful number, since it uses less digits than its factorization.

326979918048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 66.

The spelling of 326979918048 in words is "three hundred twenty-six billion, nine hundred seventy-nine million, nine hundred eighteen thousand, forty-eight".