144465587456893 has 2 divisors, whose sum is σ = 144465587456894. Its totient is φ = 144465587456892.

The previous prime is 144465587456857. The next prime is 144465587456899. The reversal of 144465587456893 is 398654785564441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133131605363289 + 11333982093604 = 11538267^2 + 3366598^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144465587456893 is a prime.

It is a super-2 number, since 2×144465587456893² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144465587456899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72232793728446 + 72232793728447.

It is an arithmetic number, because the mean of its divisors is an integer number (72232793728447).

Almost surely, 2^{144465587456893} is an apocalyptic number.

It is an amenable number.

144465587456893 is a deficient number, since it is larger than the sum of its proper divisors (1).

144465587456893 is an equidigital number, since it uses as much as digits as its factorization.

144465587456893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13934592000, while the sum is 79.

The spelling of 144465587456893 in words is "one hundred forty-four trillion, four hundred sixty-five billion, five hundred eighty-seven million, four hundred fifty-six thousand, eight hundred ninety-three".