327390021788 has 6 divisors (see below), whose sum is σ = 572932538136. Its totient is φ = 163695010892.

The previous prime is 327390021781. The next prime is 327390021797. The reversal of 327390021788 is 887120093723.

It is a super-2 number, since 2×327390021788² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327390021781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40923752720 + ... + 40923752727.

It is an arithmetic number, because the mean of its divisors is an integer number (95488756356).

Almost surely, 2^327390021788 is an apocalyptic number.

It is an amenable number.

327390021788 is a deficient number, since it is larger than the sum of its proper divisors (245542516348).

327390021788 is a wasteful number, since it uses less digits than its factorization.

327390021788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81847505451 (or 81847505449 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 327390021788 in words is "three hundred twenty-seven billion, three hundred ninety million, twenty-one thousand, seven hundred eighty-eight".