144787220321812 has 12 divisors (see below), whose sum is σ = 261551107678336. Its totient is φ = 70058332413720.

The previous prime is 144787220321797. The next prime is 144787220321911. The reversal of 144787220321812 is 218123022787441.

It is a self number, because there is not a number n which added to its sum of digits gives 144787220321812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583819436658 + ... + 583819436905.

Almost surely, 2^{144787220321812} is an apocalyptic number.

It is an amenable number.

144787220321812 is a deficient number, since it is larger than the sum of its proper divisors (116763887356524).

144787220321812 is a wasteful number, since it uses less digits than its factorization.

144787220321812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167638873598 (or 1167638873596 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 52.

The spelling of 144787220321812 in words is "one hundred forty-four trillion, seven hundred eighty-seven billion, two hundred twenty million, three hundred twenty-one thousand, eight hundred twelve".