144421424451 has 24 divisors (see below), whose sum is σ = 216032806080. Its totient is φ = 92861548416.

The previous prime is 144421424431. The next prime is 144421424479. The reversal of 144421424451 is 154424124441.

144421424451 is a `hidden beast` number, since 144 + 4 + 21 + 42 + 4 + 451 = 666.

It is not a de Polignac number, because 144421424451 - 2¹⁵ = 144421391683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144421424431) 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, 50715 + ... + 539828.

It is an arithmetic number, because the mean of its divisors is an integer number (9001366920).

Almost surely, 2^144421424451 is an apocalyptic number.

144421424451 is a deficient number, since it is larger than the sum of its proper divisors (71611381629).

144421424451 is a wasteful number, since it uses less digits than its factorization.

144421424451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591515 (or 591512 counting only the distinct ones).

The product of its digits is 81920, while the sum is 36.

Adding to 144421424451 its reverse (154424124441), we get a palindrome (298845548892).

The spelling of 144421424451 in words is "one hundred forty-four billion, four hundred twenty-one million, four hundred twenty-four thousand, four hundred fifty-one".