205441489838 has 16 divisors (see below), whose sum is σ = 339584861616. Its totient is φ = 92614052160.

The previous prime is 205441489819. The next prime is 205441489871. The reversal of 205441489838 is 838984144502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91877903 + ... + 91880138.

It is an arithmetic number, because the mean of its divisors is an integer number (21224053851).

Almost surely, 2^205441489838 is an apocalyptic number.

205441489838 is a deficient number, since it is larger than the sum of its proper divisors (134143371778).

205441489838 is a wasteful number, since it uses less digits than its factorization.

205441489838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183758099.

The product of its (nonzero) digits is 8847360, while the sum is 56.

The spelling of 205441489838 in words is "two hundred five billion, four hundred forty-one million, four hundred eighty-nine thousand, eight hundred thirty-eight".