144646344847 has 2 divisors, whose sum is σ = 144646344848. Its totient is φ = 144646344846.

The previous prime is 144646344841. The next prime is 144646344851. The reversal of 144646344847 is 748443646441.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144646344847 - 2³ = 144646344839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144646344841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72323172423 + 72323172424.

It is an arithmetic number, because the mean of its divisors is an integer number (72323172424).

Almost surely, 2^144646344847 is an apocalyptic number.

144646344847 is a deficient number, since it is larger than the sum of its proper divisors (1).

144646344847 is an equidigital number, since it uses as much as digits as its factorization.

144646344847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24772608, while the sum is 55.

The spelling of 144646344847 in words is "one hundred forty-four billion, six hundred forty-six million, three hundred forty-four thousand, eight hundred forty-seven".