326555234120643 has 32 divisors (see below), whose sum is σ = 501755620623360. Its totient is φ = 186833298673440.

The previous prime is 326555234120597. The next prime is 326555234120653. The reversal of 326555234120643 is 346021432555623.

It is a happy number.

It is not a de Polignac number, because 326555234120643 - 2²⁸ = 326554965685187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (326555234120653) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 920002321 + ... + 920357202.

It is an arithmetic number, because the mean of its divisors is an integer number (15679863144480).

Almost surely, 2^{326555234120643} is an apocalyptic number.

326555234120643 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

326555234120643 is a deficient number, since it is larger than the sum of its proper divisors (175200386502717).

326555234120643 is a wasteful number, since it uses less digits than its factorization.

326555234120643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840359839.

The product of its (nonzero) digits is 15552000, while the sum is 51.

The spelling of 326555234120643 in words is "three hundred twenty-six trillion, five hundred fifty-five billion, two hundred thirty-four million, one hundred twenty thousand, six hundred forty-three".