806342320858 has 4 divisors (see below), whose sum is σ = 1209513481290. Its totient is φ = 403171160428.

The previous prime is 806342320813. The next prime is 806342320907. The reversal of 806342320858 is 858023243608.

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., 480932541049 + 325409779809 = 693493^2 + 570447^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201585580213 + ... + 201585580216.

Almost surely, 2^806342320858 is an apocalyptic number.

806342320858 is a deficient number, since it is larger than the sum of its proper divisors (403171160432).

806342320858 is a wasteful number, since it uses less digits than its factorization.

806342320858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403171160431.

The product of its (nonzero) digits is 2211840, while the sum is 49.

The spelling of 806342320858 in words is "eight hundred six billion, three hundred forty-two million, three hundred twenty thousand, eight hundred fifty-eight".