205925926129 has 12 divisors (see below), whose sum is σ = 261323439408. Its totient is φ = 160461760200.

The previous prime is 205925926061. The next prime is 205925926133. The reversal of 205925926129 is 921629529502.

205925926129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 205925926129 - 2⁹ = 205925925617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205925926189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191025367 + ... + 191026444.

It is an arithmetic number, because the mean of its divisors is an integer number (21776953284).

Almost surely, 2^205925926129 is an apocalyptic number.

It is an amenable number.

205925926129 is a deficient number, since it is larger than the sum of its proper divisors (55397513279).

205925926129 is a wasteful number, since it uses less digits than its factorization.

205925926129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382051836 (or 382051829 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 52.

The spelling of 205925926129 in words is "two hundred five billion, nine hundred twenty-five million, nine hundred twenty-six thousand, one hundred twenty-nine".