144440309701821 has 192 divisors, whose sum is σ = 232072982790144. Its totient is φ = 78260431011840.

The previous prime is 144440309701817. The next prime is 144440309701841. The reversal of 144440309701821 is 128107903044441.

It is not a de Polignac number, because 144440309701821 - 2² = 144440309701817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144440309701801) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 250329825885 + ... + 250329826461.

It is an arithmetic number, because the mean of its divisors is an integer number (1208713452032).

Almost surely, 2^{144440309701821} is an apocalyptic number.

It is an amenable number.

144440309701821 is a deficient number, since it is larger than the sum of its proper divisors (87632673088323).

144440309701821 is a wasteful number, since it uses less digits than its factorization.

144440309701821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552 (or 1521 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 144440309701821 in words is "one hundred forty-four trillion, four hundred forty billion, three hundred nine million, seven hundred one thousand, eight hundred twenty-one".