286542397909 has 2 divisors, whose sum is σ = 286542397910. Its totient is φ = 286542397908.

The previous prime is 286542397879. The next prime is 286542397949. The reversal of 286542397909 is 909793245682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286034571684 + 507826225 = 534822^2 + 22535^2 .

It is a cyclic number.

It is not a de Polignac number, because 286542397909 - 2¹¹ = 286542395861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (286542397949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143271198954 + 143271198955.

It is an arithmetic number, because the mean of its divisors is an integer number (143271198955).

Almost surely, 2^286542397909 is an apocalyptic number.

It is an amenable number.

286542397909 is a deficient number, since it is larger than the sum of its proper divisors (1).

286542397909 is an equidigital number, since it uses as much as digits as its factorization.

286542397909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58786560, while the sum is 64.

The spelling of 286542397909 in words is "two hundred eighty-six billion, five hundred forty-two million, three hundred ninety-seven thousand, nine hundred nine".