144764643518 has 16 divisors (see below), whose sum is σ = 239886178560. Its totient is φ = 64969171800.

The previous prime is 144764643493. The next prime is 144764643533. The reversal of 144764643518 is 815346467441.

It is a self number, because there is not a number n which added to its sum of digits gives 144764643518.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41645168 + ... + 41648643.

It is an arithmetic number, because the mean of its divisors is an integer number (14992886160).

Almost surely, 2^144764643518 is an apocalyptic number.

144764643518 is a deficient number, since it is larger than the sum of its proper divisors (95121535042).

144764643518 is a wasteful number, since it uses less digits than its factorization.

144764643518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83293903.

The product of its digits is 7741440, while the sum is 53.

The spelling of 144764643518 in words is "one hundred forty-four billion, seven hundred sixty-four million, six hundred forty-three thousand, five hundred eighteen".