144918761889 has 8 divisors (see below), whose sum is σ = 210790926432. Its totient is φ = 87829552640.

The previous prime is 144918761879. The next prime is 144918761899. The reversal of 144918761889 is 988167819441.

144918761889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (144918761879) and next prime (144918761899).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144918761889 - 2¹¹ = 144918759841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144918761849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2195738784 + ... + 2195738849.

It is an arithmetic number, because the mean of its divisors is an integer number (26348865804).

Almost surely, 2^144918761889 is an apocalyptic number.

It is an amenable number.

144918761889 is a deficient number, since it is larger than the sum of its proper divisors (65872164543).

144918761889 is a wasteful number, since it uses less digits than its factorization.

144918761889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4391477647.

The product of its digits is 27869184, while the sum is 66.

The spelling of 144918761889 in words is "one hundred forty-four billion, nine hundred eighteen million, seven hundred sixty-one thousand, eight hundred eighty-nine".