65838103892887 has 2 divisors, whose sum is σ = 65838103892888. Its totient is φ = 65838103892886.

The previous prime is 65838103892809. The next prime is 65838103892921. The reversal of 65838103892887 is 78829830183856.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65838103892887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65838103892387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32919051946443 + 32919051946444.

It is an arithmetic number, because the mean of its divisors is an integer number (32919051946444).

Almost surely, 2^{65838103892887} is an apocalyptic number.

65838103892887 is a deficient number, since it is larger than the sum of its proper divisors (1).

65838103892887 is an equidigital number, since it uses as much as digits as its factorization.

65838103892887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1114767360, while the sum is 76.

The spelling of 65838103892887 in words is "sixty-five trillion, eight hundred thirty-eight billion, one hundred three million, eight hundred ninety-two thousand, eight hundred eighty-seven".