285343750729 has 2 divisors, whose sum is σ = 285343750730. Its totient is φ = 285343750728.

The previous prime is 285343750723. The next prime is 285343750733. The reversal of 285343750729 is 927057343582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165193473600 + 120150277129 = 406440^2 + 346627^2 .

It is a cyclic number.

It is not a de Polignac number, because 285343750729 - 2²³ = 285335362121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 285343750729.

It is not a weakly prime, because it can be changed into another prime (285343750723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142671875364 + 142671875365.

It is an arithmetic number, because the mean of its divisors is an integer number (142671875365).

Almost surely, 2^285343750729 is an apocalyptic number.

It is an amenable number.

285343750729 is a deficient number, since it is larger than the sum of its proper divisors (1).

285343750729 is an equidigital number, since it uses as much as digits as its factorization.

285343750729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12700800, while the sum is 55.

The spelling of 285343750729 in words is "two hundred eighty-five billion, three hundred forty-three million, seven hundred fifty thousand, seven hundred twenty-nine".