144326781077 has 2 divisors, whose sum is σ = 144326781078. Its totient is φ = 144326781076.

The previous prime is 144326781029. The next prime is 144326781083. The reversal of 144326781077 is 770187623441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73405232356 + 70921548721 = 270934^2 + 266311^2 .

It is a cyclic number.

It is not a de Polignac number, because 144326781077 - 2¹⁴ = 144326764693 is a prime.

It is a super-3 number, since 3×144326781077³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144326781017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72163390538 + 72163390539.

It is an arithmetic number, because the mean of its divisors is an integer number (72163390539).

Almost surely, 2^144326781077 is an apocalyptic number.

It is an amenable number.

144326781077 is a deficient number, since it is larger than the sum of its proper divisors (1).

144326781077 is an equidigital number, since it uses as much as digits as its factorization.

144326781077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1580544, while the sum is 50.

The spelling of 144326781077 in words is "one hundred forty-four billion, three hundred twenty-six million, seven hundred eighty-one thousand, seventy-seven".