326443283265680 has 80 divisors (see below), whose sum is σ = 879288718479744. Its totient is φ = 110390213975040.

The previous prime is 326443283265637. The next prime is 326443283265767. The reversal of 326443283265680 is 86562382344623.

It is a tau number, because it is divible by the number of its divisors (80).

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, 3992660726 + ... + 3992742485.

Almost surely, 2^{326443283265680} is an apocalyptic number.

It is an amenable number.

326443283265680 is an abundant number, since it is smaller than the sum of its proper divisors (552845435214064).

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

326443283265680 is a wasteful number, since it uses less digits than its factorization.

326443283265680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7985403304 (or 7985403298 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 62.

The spelling of 326443283265680 in words is "three hundred twenty-six trillion, four hundred forty-three billion, two hundred eighty-three million, two hundred sixty-five thousand, six hundred eighty".