326613810432 has 432 divisors, whose sum is σ = 1092805893312. Its totient is φ = 85837086720.

The previous prime is 326613810389. The next prime is 326613810437. The reversal of 326613810432 is 234018316623.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326613810437) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161929488 + ... + 161931504.

Almost surely, 2^326613810432 is an apocalyptic number.

326613810432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326613810432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546402946656).

326613810432 is an abundant number, since it is smaller than the sum of its proper divisors (766192082880).

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

326613810432 is a wasteful number, since it uses less digits than its factorization.

326613810432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394 (or 2373 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 326613810432 in words is "three hundred twenty-six billion, six hundred thirteen million, eight hundred ten thousand, four hundred thirty-two".