858080448646 has 16 divisors (see below), whose sum is σ = 1305522733680. Its totient is φ = 422946165600.

The previous prime is 858080448611. The next prime is 858080448677. The reversal of 858080448646 is 646844080858.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9947280 + ... + 10033171.

It is an arithmetic number, because the mean of its divisors is an integer number (81595170855).

Almost surely, 2^858080448646 is an apocalyptic number.

858080448646 is a deficient number, since it is larger than the sum of its proper divisors (447442285034).

858080448646 is a wasteful number, since it uses less digits than its factorization.

858080448646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19980759.

The product of its (nonzero) digits is 47185920, while the sum is 61.

The spelling of 858080448646 in words is "eight hundred fifty-eight billion, eighty million, four hundred forty-eight thousand, six hundred forty-six".