286005406812 has 144 divisors (see below), whose sum is σ = 719053023360. Its totient is φ = 88231095936.

The previous prime is 286005406811. The next prime is 286005406829. The reversal of 286005406812 is 218604500682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286005406811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137303523 + ... + 137305605.

Almost surely, 2^286005406812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 286005406812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359526511680).

286005406812 is an abundant number, since it is smaller than the sum of its proper divisors (433047616548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

286005406812 is a wasteful number, since it uses less digits than its factorization.

286005406812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400 (or 2339 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 286005406812 in words is "two hundred eighty-six billion, five million, four hundred six thousand, eight hundred twelve".