326163840428 has 24 divisors (see below), whose sum is σ = 580741262640. Its totient is φ = 160260249600.

The previous prime is 326163840419. The next prime is 326163840439. The reversal of 326163840428 is 824048361623.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2752373 + ... + 2868428.

It is an arithmetic number, because the mean of its divisors is an integer number (24197552610).

Almost surely, 2^326163840428 is an apocalyptic number.

It is an amenable number.

326163840428 is a deficient number, since it is larger than the sum of its proper divisors (254577422212).

326163840428 is a wasteful number, since it uses less digits than its factorization.

326163840428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5621057 (or 5621055 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 47.

The spelling of 326163840428 in words is "three hundred twenty-six billion, one hundred sixty-three million, eight hundred forty thousand, four hundred twenty-eight".