326727343727623 has 4 divisors (see below), whose sum is σ = 329962267923048. Its totient is φ = 323492419532200.

The previous prime is 326727343727599. The next prime is 326727343727639.

326727343727623 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326727343727623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326727343727723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1617462097561 + ... + 1617462097762.

It is an arithmetic number, because the mean of its divisors is an integer number (82490566980762).

Almost surely, 2^{326727343727623} is an apocalyptic number.

326727343727623 is a deficient number, since it is larger than the sum of its proper divisors (3234924195425).

326727343727623 is a wasteful number, since it uses less digits than its factorization.

326727343727623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234924195424.

The product of its digits is 448084224, while the sum is 64.

The spelling of 326727343727623 in words is "three hundred twenty-six trillion, seven hundred twenty-seven billion, three hundred forty-three million, seven hundred twenty-seven thousand, six hundred twenty-three".