326534404435623 has 32 divisors (see below), whose sum is σ = 484422434880000. Its totient is φ = 217389126243456.

The previous prime is 326534404435571. The next prime is 326534404435639.

It is a happy number.

326534404435623 is a `hidden beast` number, since 3 + 2 + 6 + 5 + 3 + 4 + 4 + 0 + 4 + 4 + 3 + 5 + 623 = 666.

326534404435623 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 326534404435623 - 2¹⁷ = 326534404304551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 326534404435623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326534404435693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 808273663 + ... + 808677551.

It is an arithmetic number, because the mean of its divisors is an integer number (15138201090000).

Almost surely, 2^{326534404435623} is an apocalyptic number.

326534404435623 is a deficient number, since it is larger than the sum of its proper divisors (157888030444377).

326534404435623 is a wasteful number, since it uses less digits than its factorization.

326534404435623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445156 (or 445150 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 54.

The spelling of 326534404435623 in words is "three hundred twenty-six trillion, five hundred thirty-four billion, four hundred four million, four hundred thirty-five thousand, six hundred twenty-three".