144563790021 has 24 divisors (see below), whose sum is σ = 224287977600. Its totient is φ = 82583347392.

The previous prime is 144563789989. The next prime is 144563790029. The reversal of 144563790021 is 120097365441.

It is not a de Polignac number, because 144563790021 - 2⁵ = 144563789989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144563790029) 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, 356505 + ... + 645153.

It is an arithmetic number, because the mean of its divisors is an integer number (9345332400).

Almost surely, 2^144563790021 is an apocalyptic number.

It is an amenable number.

144563790021 is a deficient number, since it is larger than the sum of its proper divisors (79724187579).

144563790021 is a wasteful number, since it uses less digits than its factorization.

144563790021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292073 (or 292066 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 144563790021 in words is "one hundred forty-four billion, five hundred sixty-three million, seven hundred ninety thousand, twenty-one".