326140134376 has 64 divisors (see below), whose sum is σ = 723083719680. Its totient is φ = 134952791040.

The previous prime is 326140134323. The next prime is 326140134391. The reversal of 326140134376 is 673431041623.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534750 + ... + 968626.

It is an arithmetic number, because the mean of its divisors is an integer number (11298183120).

Almost surely, 2^326140134376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326140134376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361541859840).

326140134376 is an abundant number, since it is smaller than the sum of its proper divisors (396943585304).

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

326140134376 is a wasteful number, since it uses less digits than its factorization.

326140134376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434354 (or 434350 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 40.

Adding to 326140134376 its reverse (673431041623), we get a palindrome (999571175999).

The spelling of 326140134376 in words is "three hundred twenty-six billion, one hundred forty million, one hundred thirty-four thousand, three hundred seventy-six".