326936772240 has 160 divisors (see below), whose sum is σ = 1091920279296. Its totient is φ = 80443238400.

The previous prime is 326936772193. The next prime is 326936772257. The reversal of 326936772240 is 42277639623.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7938582 + ... + 7979658.

Almost surely, 2^326936772240 is an apocalyptic number.

326936772240 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 326936772240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (545960139648).

326936772240 is an abundant number, since it is smaller than the sum of its proper divisors (764983507056).

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

326936772240 is a wasteful number, since it uses less digits than its factorization.

326936772240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43657 (or 43651 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 51.

The spelling of 326936772240 in words is "three hundred twenty-six billion, nine hundred thirty-six million, seven hundred seventy-two thousand, two hundred forty".