128000000326 has 32 divisors (see below), whose sum is σ = 215314454016. Its totient is φ = 56576520000.

The previous prime is 128000000273. The next prime is 128000000327. The reversal of 128000000326 is 623000000821.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 128000000297 and 128000000306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128000000327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447250 + ... + 675301.

It is an arithmetic number, because the mean of its divisors is an integer number (6728576688).

Almost surely, 2^128000000326 is an apocalyptic number.

128000000326 is a deficient number, since it is larger than the sum of its proper divisors (87314453690).

128000000326 is a wasteful number, since it uses less digits than its factorization.

128000000326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122708.

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 128000000326 in words is "one hundred twenty-eight billion, three hundred twenty-six", and thus it is an aban number.