326818763040 has 768 divisors, whose sum is σ = 1381447581696. Its totient is φ = 62860492800.

The previous prime is 326818763021. The next prime is 326818763053. The reversal of 326818763040 is 40367818623.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 38323257 + ... + 38331783.

It is an arithmetic number, because the mean of its divisors is an integer number (1798759872).

Almost surely, 2^326818763040 is an apocalyptic number.

326818763040 is a gapful number since it is divisible by the number (30) 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 326818763040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690723790848).

326818763040 is an abundant number, since it is smaller than the sum of its proper divisors (1054628818656).

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

326818763040 is a wasteful number, since it uses less digits than its factorization.

326818763040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8641 (or 8633 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 326818763040 in words is "three hundred twenty-six billion, eight hundred eighteen million, seven hundred sixty-three thousand, forty".