846640031306 has 4 divisors (see below), whose sum is σ = 1269960046962. Its totient is φ = 423320015652.

The previous prime is 846640031297. The next prime is 846640031323. The reversal of 846640031306 is 603130046648.

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., 811449648025 + 35190383281 = 900805^2 + 187591^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211660007825 + ... + 211660007828.

Almost surely, 2^846640031306 is an apocalyptic number.

846640031306 is a deficient number, since it is larger than the sum of its proper divisors (423320015656).

846640031306 is a wasteful number, since it uses less digits than its factorization.

846640031306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423320015655.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 846640031306 in words is "eight hundred forty-six billion, six hundred forty million, thirty-one thousand, three hundred six".