327999781922 has 6 divisors (see below), whose sum is σ = 492000887793. Its totient is φ = 163999485992.

The previous prime is 327999781919. The next prime is 327999781939. The reversal of 327999781922 is 229187999723.

It can be written as a sum of positive squares in 2 ways, for example, as 216337544641 + 111662237281 = 465121^2 + 334159^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=404969.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 607454 + ... + 1012422.

Almost surely, 2^327999781922 is an apocalyptic number.

327999781922 is a deficient number, since it is larger than the sum of its proper divisors (164001105871).

327999781922 is an frugal number, since it uses more digits than its factorization.

327999781922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809940 (or 404971 counting only the distinct ones).

The product of its digits is 61725888, while the sum is 68.

The spelling of 327999781922 in words is "three hundred twenty-seven billion, nine hundred ninety-nine million, seven hundred eighty-one thousand, nine hundred twenty-two".