277145308865141 has 2 divisors, whose sum is σ = 277145308865142. Its totient is φ = 277145308865140.

The previous prime is 277145308865111. The next prime is 277145308865153. The reversal of 277145308865141 is 141568803541772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215430474002500 + 61714834862641 = 14677550^2 + 7855879^2 .

It is a cyclic number.

It is not a de Polignac number, because 277145308865141 - 2⁶ = 277145308865077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (277145308865111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138572654432570 + 138572654432571.

It is an arithmetic number, because the mean of its divisors is an integer number (138572654432571).

Almost surely, 2^{277145308865141} is an apocalyptic number.

It is an amenable number.

277145308865141 is a deficient number, since it is larger than the sum of its proper divisors (1).

277145308865141 is an equidigital number, since it uses as much as digits as its factorization.

277145308865141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45158400, while the sum is 62.

The spelling of 277145308865141 in words is "two hundred seventy-seven trillion, one hundred forty-five billion, three hundred eight million, eight hundred sixty-five thousand, one hundred forty-one".