327281132728 has 16 divisors (see below), whose sum is σ = 669438680760. Its totient is φ = 148764151200.

The previous prime is 327281132701. The next prime is 327281132743. The reversal of 327281132728 is 827231182723.

It is a happy number.

It is a super-2 number, since 2×327281132728² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1859551803 + ... + 1859551978.

Almost surely, 2^327281132728 is an apocalyptic number.

It is an amenable number.

327281132728 is an abundant number, since it is smaller than the sum of its proper divisors (342157548032).

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

327281132728 is a wasteful number, since it uses less digits than its factorization.

327281132728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719103798 (or 3719103794 counting only the distinct ones).

The product of its digits is 451584, while the sum is 46.

The spelling of 327281132728 in words is "three hundred twenty-seven billion, two hundred eighty-one million, one hundred thirty-two thousand, seven hundred twenty-eight".