286542397906 has 4 divisors (see below), whose sum is σ = 429813596862. Its totient is φ = 143271198952.

The previous prime is 286542397879. The next prime is 286542397909. The reversal of 286542397906 is 609793245682.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 239174793025 + 47367604881 = 489055^2 + 217641^2 .

It is not an unprimeable number, because it can be changed into a prime (286542397909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71635599475 + ... + 71635599478.

Almost surely, 2^286542397906 is an apocalyptic number.

286542397906 is a deficient number, since it is larger than the sum of its proper divisors (143271198956).

286542397906 is a wasteful number, since it uses less digits than its factorization.

286542397906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143271198955.

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 286542397906 in words is "two hundred eighty-six billion, five hundred forty-two million, three hundred ninety-seven thousand, nine hundred six".