13623943672943 has 4 divisors (see below), whose sum is σ = 14340993339960. Its totient is φ = 12906894005928.

The previous prime is 13623943672939. The next prime is 13623943672991. The reversal of 13623943672943 is 34927634932631.

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

It is a cyclic number.

It is not a de Polignac number, because 13623943672943 - 2² = 13623943672939 is a prime.

It is a super-2 number, since 2×13623943672943² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13623943672903) 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, 358524833480 + ... + 358524833517.

It is an arithmetic number, because the mean of its divisors is an integer number (3585248334990).

Almost surely, 2^{13623943672943} is an apocalyptic number.

13623943672943 is a deficient number, since it is larger than the sum of its proper divisors (717049667017).

13623943672943 is an equidigital number, since it uses as much as digits as its factorization.

13623943672943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717049667016.

The product of its digits is 105815808, while the sum is 62.

The spelling of 13623943672943 in words is "thirteen trillion, six hundred twenty-three billion, nine hundred forty-three million, six hundred seventy-two thousand, nine hundred forty-three".