4644143322131 has 4 divisors (see below), whose sum is σ = 4644168165000. Its totient is φ = 4644118479264.

The previous prime is 4644143322109. The next prime is 4644143322163. The reversal of 4644143322131 is 1312233414464.

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 4644143322131 - 2¹⁸ = 4644143059987 is a prime.

It is a super-2 number, since 2×4644143322131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4644143322331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12138881 + ... + 12515618.

It is an arithmetic number, because the mean of its divisors is an integer number (1161042041250).

Almost surely, 2^{4644143322131} is an apocalyptic number.

4644143322131 is a deficient number, since it is larger than the sum of its proper divisors (24842869).

4644143322131 is a wasteful number, since it uses less digits than its factorization.

4644143322131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24842868.

The product of its digits is 165888, while the sum is 38.

Adding to 4644143322131 its reverse (1312233414464), we get a palindrome (5956376736595).

The spelling of 4644143322131 in words is "four trillion, six hundred forty-four billion, one hundred forty-three million, three hundred twenty-two thousand, one hundred thirty-one".