327638604720 has 160 divisors (see below), whose sum is σ = 1161292815360. Its totient is φ = 74855531520.

The previous prime is 327638604707. The next prime is 327638604757. The reversal of 327638604720 is 27406836723.

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

It is a self number, because there is not a number n which added to its sum of digits gives 327638604720.

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, 3840286 + ... + 3924674.

It is an arithmetic number, because the mean of its divisors is an integer number (7258080096).

Almost surely, 2^327638604720 is an apocalyptic number.

327638604720 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 327638604720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580646407680).

327638604720 is an abundant number, since it is smaller than the sum of its proper divisors (833654210640).

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

327638604720 is a wasteful number, since it uses less digits than its factorization.

327638604720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86723 (or 86717 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 327638604720 in words is "three hundred twenty-seven billion, six hundred thirty-eight million, six hundred four thousand, seven hundred twenty".