265143062381887 has 2 divisors, whose sum is σ = 265143062381888. Its totient is φ = 265143062381886.

The previous prime is 265143062381849. The next prime is 265143062381947. The reversal of 265143062381887 is 788183260341562.

265143062381887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 265143062381887 - 2³⁹ = 264593306567999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265143062381807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132571531190943 + 132571531190944.

It is an arithmetic number, because the mean of its divisors is an integer number (132571531190944).

Almost surely, 2^{265143062381887} is an apocalyptic number.

265143062381887 is a deficient number, since it is larger than the sum of its proper divisors (1).

265143062381887 is an equidigital number, since it uses as much as digits as its factorization.

265143062381887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92897280, while the sum is 64.

The spelling of 265143062381887 in words is "two hundred sixty-five trillion, one hundred forty-three billion, sixty-two million, three hundred eighty-one thousand, eight hundred eighty-seven".