205754537868 has 48 divisors (see below), whose sum is σ = 526664799360. Its totient is φ = 62001529600.

The previous prime is 205754537851. The next prime is 205754537869. The reversal of 205754537868 is 868735457502.

It is not an unprimeable number, because it can be changed into a prime (205754537869) 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, 4330413 + ... + 4377668.

It is an arithmetic number, because the mean of its divisors is an integer number (10972183320).

Almost surely, 2^205754537868 is an apocalyptic number.

It is an amenable number.

205754537868 is an abundant number, since it is smaller than the sum of its proper divisors (320910261492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205754537868 is a wasteful number, since it uses less digits than its factorization.

205754537868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8708278 (or 8708276 counting only the distinct ones).

The product of its (nonzero) digits is 56448000, while the sum is 60.

The spelling of 205754537868 in words is "two hundred five billion, seven hundred fifty-four million, five hundred thirty-seven thousand, eight hundred sixty-eight".