326854487680 has 128 divisors (see below), whose sum is σ = 896848692480. Its totient is φ = 111583076352.

The previous prime is 326854487677. The next prime is 326854487753. The reversal of 326854487680 is 86784458623.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×326854487680² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 887277 + ... + 1200403.

It is an arithmetic number, because the mean of its divisors is an integer number (7006630410).

Almost surely, 2^326854487680 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 326854487680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448424346240).

326854487680 is an abundant number, since it is smaller than the sum of its proper divisors (569994204800).

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

326854487680 is a wasteful number, since it uses less digits than its factorization.

326854487680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313386 (or 313374 counting only the distinct ones).

The product of its (nonzero) digits is 61931520, while the sum is 61.

It can be divided in two parts, 3268544 and 87680, that added together give a square (3356224 = 1832²).

The spelling of 326854487680 in words is "three hundred twenty-six billion, eight hundred fifty-four million, four hundred eighty-seven thousand, six hundred eighty".