144648904477 has 32 divisors (see below), whose sum is σ = 181444320000. Its totient is φ = 112025272320.

The previous prime is 144648904459. The next prime is 144648904481. The reversal of 144648904477 is 774409846441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144648904477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144648904417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18557493 + ... + 18565285.

It is an arithmetic number, because the mean of its divisors is an integer number (5670135000).

Almost surely, 2^144648904477 is an apocalyptic number.

It is an amenable number.

144648904477 is a deficient number, since it is larger than the sum of its proper divisors (36795415523).

144648904477 is a wasteful number, since it uses less digits than its factorization.

144648904477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9253.

The product of its (nonzero) digits is 21676032, while the sum is 58.

The spelling of 144648904477 in words is "one hundred forty-four billion, six hundred forty-eight million, nine hundred four thousand, four hundred seventy-seven".