144431128688077 has 24 divisors (see below), whose sum is σ = 181461099292928. Its totient is φ = 112527016953120.

The previous prime is 144431128688047. The next prime is 144431128688083. The reversal of 144431128688077 is 770886821134441.

It is a de Polignac number, because none of the positive numbers 2^k-144431128688077 is a prime.

It is a super-2 number, since 2×144431128688077² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144431128688047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6960213 + ... + 18365914.

Almost surely, 2^{144431128688077} is an apocalyptic number.

It is an amenable number.

144431128688077 is a deficient number, since it is larger than the sum of its proper divisors (37029970604851).

144431128688077 is a wasteful number, since it uses less digits than its factorization.

144431128688077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25332889 (or 25332878 counting only the distinct ones).

The product of its (nonzero) digits is 57802752, while the sum is 64.

The spelling of 144431128688077 in words is "one hundred forty-four trillion, four hundred thirty-one billion, one hundred twenty-eight million, six hundred eighty-eight thousand, seventy-seven".