846649040839 has 8 divisors (see below), whose sum is σ = 967625515008. Its totient is φ = 725679219480.

The previous prime is 846649040821. The next prime is 846649040863. The reversal of 846649040839 is 938040946648.

846649040839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 846649040839 - 2¹⁷ = 846648909767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (846649040899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1387447 + ... + 1902184.

It is an arithmetic number, because the mean of its divisors is an integer number (120953189376).

Almost surely, 2^846649040839 is an apocalyptic number.

846649040839 is a deficient number, since it is larger than the sum of its proper divisors (120976474169).

846649040839 is a wasteful number, since it uses less digits than its factorization.

846649040839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326405.

The product of its (nonzero) digits is 35831808, while the sum is 61.

The spelling of 846649040839 in words is "eight hundred forty-six billion, six hundred forty-nine million, forty thousand, eight hundred thirty-nine".