14444169381 has 24 divisors (see below), whose sum is σ = 20923343064. Its totient is φ = 9602012160.

The previous prime is 14444169361. The next prime is 14444169427. The reversal of 14444169381 is 18396144441.

14444169381 is a `hidden beast` number, since 1 + 44 + 441 + 6 + 93 + 81 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5989366881 + 8454802500 = 77391^2 + 91950^2 .

It is not a de Polignac number, because 14444169381 - 2⁷ = 14444169253 is a prime.

It is a super-2 number, since 2×14444169381² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14444169301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6682941 + ... + 6685101.

It is an arithmetic number, because the mean of its divisors is an integer number (871805961).

Almost surely, 2^14444169381 is an apocalyptic number.

It is an amenable number.

14444169381 is a deficient number, since it is larger than the sum of its proper divisors (6479173683).

14444169381 is a wasteful number, since it uses less digits than its factorization.

14444169381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941 (or 3938 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The spelling of 14444169381 in words is "fourteen billion, four hundred forty-four million, one hundred sixty-nine thousand, three hundred eighty-one".