849662978805156 has 24 divisors (see below), whose sum is σ = 1982584225661760. Its totient is φ = 283215667918432.

The previous prime is 849662978805149. The next prime is 849662978805187. The reversal of 849662978805156 is 651508879266948.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664962216 + ... + 666238751.

It is an arithmetic number, because the mean of its divisors is an integer number (82607676069240).

Almost surely, 2^{849662978805156} is an apocalyptic number.

It is an amenable number.

849662978805156 is an abundant number, since it is smaller than the sum of its proper divisors (1132921246856604).

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

849662978805156 is a wasteful number, since it uses less digits than its factorization.

849662978805156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331254163 (or 1331254161 counting only the distinct ones).

The product of its (nonzero) digits is 12541132800, while the sum is 84.

The spelling of 849662978805156 in words is "eight hundred forty-nine trillion, six hundred sixty-two billion, nine hundred seventy-eight million, eight hundred five thousand, one hundred fifty-six".