144535778731745 has 32 divisors (see below), whose sum is σ = 176544210268800. Its totient is φ = 113564744745984.

The previous prime is 144535778731739. The next prime is 144535778731807. The reversal of 144535778731745 is 547137877535441.

It is a cyclic number.

It is not a de Polignac number, because 144535778731745 - 2¹² = 144535778727649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1440079934 + ... + 1440180296.

It is an arithmetic number, because the mean of its divisors is an integer number (5517006570900).

Almost surely, 2^{144535778731745} is an apocalyptic number.

It is an amenable number.

144535778731745 is a deficient number, since it is larger than the sum of its proper divisors (32008431537055).

144535778731745 is a wasteful number, since it uses less digits than its factorization.

144535778731745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104849.

The product of its digits is 1382976000, while the sum is 71.

The spelling of 144535778731745 in words is "one hundred forty-four trillion, five hundred thirty-five billion, seven hundred seventy-eight million, seven hundred thirty-one thousand, seven hundred forty-five".