323215421464 has 64 divisors (see below), whose sum is σ = 662832878400. Its totient is φ = 146865498624.

The previous prime is 323215421437. The next prime is 323215421509. The reversal of 323215421464 is 464124512323.

It is a congruent number.

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, 1688949 + ... + 1870555.

It is an arithmetic number, because the mean of its divisors is an integer number (10356763725).

Almost surely, 2^323215421464 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 323215421464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331416439200).

323215421464 is an abundant number, since it is smaller than the sum of its proper divisors (339617456936).

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

323215421464 is a wasteful number, since it uses less digits than its factorization.

323215421464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181892 (or 181888 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

Adding to 323215421464 its reverse (464124512323), we get a palindrome (787339933787).

The spelling of 323215421464 in words is "three hundred twenty-three billion, two hundred fifteen million, four hundred twenty-one thousand, four hundred sixty-four".