323651181934864 has 135 divisors (see below), whose sum is σ = 747726826560933. Its totient is φ = 135315900652800.

The previous prime is 323651181934841. The next prime is 323651181934889. The reversal of 323651181934864 is 468439181156323.

The square root of 323651181934864 is 17990308.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 15595327624464 + 308055854310400 = 3949092^2 + 17551520^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323651181934796 and 323651181934805.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 20652865749 + ... + 20652881419.

Almost surely, 2^{323651181934864} is an apocalyptic number.

323651181934864 is the 17990308-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323651181934864

323651181934864 is an abundant number, since it is smaller than the sum of its proper divisors (424075644626069).

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

323651181934864 is an frugal number, since it uses more digits than its factorization.

323651181934864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31446 (or 15721 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 64.

The spelling of 323651181934864 in words is "three hundred twenty-three trillion, six hundred fifty-one billion, one hundred eighty-one million, nine hundred thirty-four thousand, eight hundred sixty-four".