205413141757 has 4 divisors (see below), whose sum is σ = 206445368800. Its totient is φ = 204380914716.

The previous prime is 205413141743. The next prime is 205413141797. The reversal of 205413141757 is 757141314502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 757141314502 = 2 ⋅378570657251.

It is a cyclic number.

It is not a de Polignac number, because 205413141757 - 2⁷ = 205413141629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205413141727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516113223 + ... + 516113620.

It is an arithmetic number, because the mean of its divisors is an integer number (51611342200).

Almost surely, 2^205413141757 is an apocalyptic number.

It is an amenable number.

205413141757 is a deficient number, since it is larger than the sum of its proper divisors (1032227043).

205413141757 is a wasteful number, since it uses less digits than its factorization.

205413141757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032227042.

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 205413141757 in words is "two hundred five billion, four hundred thirteen million, one hundred forty-one thousand, seven hundred fifty-seven".