326718734656 has 56 divisors (see below), whose sum is σ = 676842309000. Its totient is φ = 156279158784.

The previous prime is 326718734647. The next prime is 326718734723. The reversal of 326718734656 is 656437817623.

It can be written as a sum of positive squares in 4 ways, for example, as 10694869056 + 316023865600 = 103416^2 + 562160^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a self number, because there is not a number n which added to its sum of digits gives 326718734656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605191 + ... + 1009798.

Almost surely, 2^326718734656 is an apocalyptic number.

It is an amenable number.

326718734656 is an abundant number, since it is smaller than the sum of its proper divisors (350123574344).

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

326718734656 is a wasteful number, since it uses less digits than its factorization.

326718734656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615139 (or 1615129 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 58.

The spelling of 326718734656 in words is "three hundred twenty-six billion, seven hundred eighteen million, seven hundred thirty-four thousand, six hundred fifty-six".