326255184772920 has 640 divisors, whose sum is σ = 1223692454476800. Its totient is φ = 77448356084736.

The previous prime is 326255184772883. The next prime is 326255184773041. The reversal of 326255184772920 is 29277481552623.

326255184772920 is a `hidden beast` number, since 3 + 2 + 6 + 2 + 5 + 518 + 4 + 77 + 29 + 20 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 141941539 + ... + 144221741.

It is an arithmetic number, because the mean of its divisors is an integer number (1912019460120).

It is a 1-persistent number, because it is pandigital, but 2⋅326255184772920 = 652510369545840 is not.

Almost surely, 2^{326255184772920} is an apocalyptic number.

326255184772920 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 326255184772920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611846227238400).

326255184772920 is an abundant number, since it is smaller than the sum of its proper divisors (897437269703880).

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

326255184772920 is a wasteful number, since it uses less digits than its factorization.

326255184772920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280361 (or 2280348 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 63.

The spelling of 326255184772920 in words is "three hundred twenty-six trillion, two hundred fifty-five billion, one hundred eighty-four million, seven hundred seventy-two thousand, nine hundred twenty".