326227985377920 has 384 divisors, whose sum is σ = 1172215748471040. Its totient is φ = 86697209032704.

The previous prime is 326227985377859. The next prime is 326227985377949. The reversal of 326227985377920 is 29773589722623.

326227985377920 is a `hidden beast` number, since 3 + 2 + 6 + 22 + 79 + 85 + 377 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41987737 + ... + 49146983.

It is an arithmetic number, because the mean of its divisors is an integer number (3052645178310).

Almost surely, 2^{326227985377920} is an apocalyptic number.

326227985377920 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 326227985377920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586107874235520).

326227985377920 is an abundant number, since it is smaller than the sum of its proper divisors (845987763093120).

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

326227985377920 is an equidigital number, since it uses as much as digits as its factorization.

326227985377920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7159574 (or 7159550 counting only the distinct ones).

The product of its (nonzero) digits is 960180480, while the sum is 72.

The spelling of 326227985377920 in words is "three hundred twenty-six trillion, two hundred twenty-seven billion, nine hundred eighty-five million, three hundred seventy-seven thousand, nine hundred twenty".