14443644631 has 16 divisors (see below), whose sum is σ = 15814872864. Its totient is φ = 13111409664.

The previous prime is 14443644571. The next prime is 14443644647. The reversal of 14443644631 is 13644634441.

It is a cyclic number.

It is not a de Polignac number, because 14443644631 - 2¹¹ = 14443642583 is a prime.

It is a super-2 number, since 2×14443644631² (a number of 21 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 (14443344631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152671 + ... + 228463.

It is an arithmetic number, because the mean of its divisors is an integer number (988429554).

Almost surely, 2^14443644631 is an apocalyptic number.

14443644631 is a deficient number, since it is larger than the sum of its proper divisors (1371228233).

14443644631 is a wasteful number, since it uses less digits than its factorization.

14443644631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76050.

The product of its digits is 331776, while the sum is 40.

The spelling of 14443644631 in words is "fourteen billion, four hundred forty-three million, six hundred forty-four thousand, six hundred thirty-one".