144788636573 has 4 divisors (see below), whose sum is σ = 165472727520. Its totient is φ = 124104545628.

The previous prime is 144788636567. The next prime is 144788636617. The reversal of 144788636573 is 375636887441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 144788636573 - 2³⁴ = 127608767389 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 (144788636563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10342045463 + ... + 10342045476.

It is an arithmetic number, because the mean of its divisors is an integer number (41368181880).

Almost surely, 2^144788636573 is an apocalyptic number.

It is an amenable number.

144788636573 is a deficient number, since it is larger than the sum of its proper divisors (20684090947).

144788636573 is an equidigital number, since it uses as much as digits as its factorization.

144788636573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20684090946.

The product of its digits is 81285120, while the sum is 62.

The spelling of 144788636573 in words is "one hundred forty-four billion, seven hundred eighty-eight million, six hundred thirty-six thousand, five hundred seventy-three".