144776256377 has 2 divisors, whose sum is σ = 144776256378. Its totient is φ = 144776256376.

The previous prime is 144776256371. The next prime is 144776256403. The reversal of 144776256377 is 773652677441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96512120896 + 48264135481 = 310664^2 + 219691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144776256377 is a prime.

It is a super-2 number, since 2×144776256377² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144776256371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72388128188 + 72388128189.

It is an arithmetic number, because the mean of its divisors is an integer number (72388128189).

Almost surely, 2^144776256377 is an apocalyptic number.

It is an amenable number.

144776256377 is a deficient number, since it is larger than the sum of its proper divisors (1).

144776256377 is an equidigital number, since it uses as much as digits as its factorization.

144776256377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41489280, while the sum is 59.

The spelling of 144776256377 in words is "one hundred forty-four billion, seven hundred seventy-six million, two hundred fifty-six thousand, three hundred seventy-seven".