205034443871 has 2 divisors, whose sum is σ = 205034443872. Its totient is φ = 205034443870.

The previous prime is 205034443847. The next prime is 205034443877. The reversal of 205034443871 is 178344430502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205034443871 - 2²⁶ = 204967335007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205034443877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102517221935 + 102517221936.

It is an arithmetic number, because the mean of its divisors is an integer number (102517221936).

Almost surely, 2^205034443871 is an apocalyptic number.

205034443871 is a deficient number, since it is larger than the sum of its proper divisors (1).

205034443871 is an equidigital number, since it uses as much as digits as its factorization.

205034443871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 205034443871 in words is "two hundred five billion, thirty-four million, four hundred forty-three thousand, eight hundred seventy-one".