3643404105423 has 4 divisors (see below), whose sum is σ = 4857872140568. Its totient is φ = 2428936070280.

The previous prime is 3643404105377. The next prime is 3643404105431. The reversal of 3643404105423 is 3245014043463.

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

It is not a de Polignac number, because 3643404105423 - 2⁹ = 3643404104911 is a prime.

It is a super-3 number, since 3×3643404105423³ (a number of 39 digits) contains 333 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 (3643404105433) 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, 607234017568 + ... + 607234017573.

It is an arithmetic number, because the mean of its divisors is an integer number (1214468035142).

Almost surely, 2^{3643404105423} is an apocalyptic number.

3643404105423 is a deficient number, since it is larger than the sum of its proper divisors (1214468035145).

3643404105423 is a wasteful number, since it uses less digits than its factorization.

3643404105423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214468035144.

The product of its (nonzero) digits is 414720, while the sum is 39.

Adding to 3643404105423 its reverse (3245014043463), we get a palindrome (6888418148886).

The spelling of 3643404105423 in words is "three trillion, six hundred forty-three billion, four hundred four million, one hundred five thousand, four hundred twenty-three".