266812034729 has 2 divisors, whose sum is σ = 266812034730. Its totient is φ = 266812034728.

The previous prime is 266812034717. The next prime is 266812034803. The reversal of 266812034729 is 927430218662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168796079104 + 98015955625 = 410848^2 + 313075^2 .

It is a cyclic number.

It is not a de Polignac number, because 266812034729 - 2²⁴ = 266795257513 is a prime.

It is not a weakly prime, because it can be changed into another prime (266812034429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133406017364 + 133406017365.

It is an arithmetic number, because the mean of its divisors is an integer number (133406017365).

Almost surely, 2^266812034729 is an apocalyptic number.

It is an amenable number.

266812034729 is a deficient number, since it is larger than the sum of its proper divisors (1).

266812034729 is an equidigital number, since it uses as much as digits as its factorization.

266812034729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 266812034729 in words is "two hundred sixty-six billion, eight hundred twelve million, thirty-four thousand, seven hundred twenty-nine".