205931853741 has 16 divisors (see below), whose sum is σ = 281653208064. Its totient is φ = 133774937904.

The previous prime is 205931853739. The next prime is 205931853847. The reversal of 205931853741 is 147358139502.

It is not a de Polignac number, because 205931853741 - 2¹ = 205931853739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205931853731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3184975 + ... + 3248988.

It is an arithmetic number, because the mean of its divisors is an integer number (17603325504).

Almost surely, 2^205931853741 is an apocalyptic number.

It is an amenable number.

205931853741 is a deficient number, since it is larger than the sum of its proper divisors (75721354323).

205931853741 is a wasteful number, since it uses less digits than its factorization.

205931853741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6434240.

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 205931853741 in words is "two hundred five billion, nine hundred thirty-one million, eight hundred fifty-three thousand, seven hundred forty-one".