36144256217 has 2 divisors, whose sum is σ = 36144256218. Its totient is φ = 36144256216.

The previous prime is 36144256139. The next prime is 36144256231. The reversal of 36144256217 is 71265244163.

36144256217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22118828176 + 14025428041 = 148724^2 + 118429^2 .

It is a cyclic number.

It is not a de Polignac number, because 36144256217 - 2³² = 31849288921 is a prime.

It is not a weakly prime, because it can be changed into another prime (36144256277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18072128108 + 18072128109.

It is an arithmetic number, because the mean of its divisors is an integer number (18072128109).

Almost surely, 2^36144256217 is an apocalyptic number.

It is an amenable number.

36144256217 is a deficient number, since it is larger than the sum of its proper divisors (1).

36144256217 is an equidigital number, since it uses as much as digits as its factorization.

36144256217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 41.

The spelling of 36144256217 in words is "thirty-six billion, one hundred forty-four million, two hundred fifty-six thousand, two hundred seventeen".