2631344405423 has 4 divisors (see below), whose sum is σ = 2655936409320. Its totient is φ = 2606752401528.

The previous prime is 2631344405401. The next prime is 2631344405471. The reversal of 2631344405423 is 3245044431362.

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 2631344405423 - 2¹² = 2631344401327 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 (2631344405023) 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, 12296001788 + ... + 12296002001.

It is an arithmetic number, because the mean of its divisors is an integer number (663984102330).

Almost surely, 2^{2631344405423} is an apocalyptic number.

2631344405423 is a deficient number, since it is larger than the sum of its proper divisors (24592003897).

2631344405423 is a wasteful number, since it uses less digits than its factorization.

2631344405423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24592003896.

The product of its (nonzero) digits is 829440, while the sum is 41.

Adding to 2631344405423 its reverse (3245044431362), we get a palindrome (5876388836785).

The spelling of 2631344405423 in words is "two trillion, six hundred thirty-one billion, three hundred forty-four million, four hundred five thousand, four hundred twenty-three".