326425376550 has 192 divisors, whose sum is σ = 1020653673984. Its totient is φ = 67192243200.

The previous prime is 326425376531. The next prime is 326425376609. The reversal of 326425376550 is 55673524623.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 326425376550.

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 95 ways as a sum of consecutive naturals, for example, 268017 + ... + 851283.

It is an arithmetic number, because the mean of its divisors is an integer number (5315904552).

Almost surely, 2^326425376550 is an apocalyptic number.

326425376550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 326425376550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510326836992).

326425376550 is an abundant number, since it is smaller than the sum of its proper divisors (694228297434).

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

326425376550 is a wasteful number, since it uses less digits than its factorization.

326425376550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583343 (or 583338 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 48.

The spelling of 326425376550 in words is "three hundred twenty-six billion, four hundred twenty-five million, three hundred seventy-six thousand, five hundred fifty".