8400683667844 has 48 divisors (see below), whose sum is σ = 16670552734080. Its totient is φ = 3672020943360.

The previous prime is 8400683667829. The next prime is 8400683667851. The reversal of 8400683667844 is 4487663860048.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1820412 + ... + 4485004.

It is an arithmetic number, because the mean of its divisors is an integer number (347303181960).

Almost surely, 2^{8400683667844} is an apocalyptic number.

It is an amenable number.

8400683667844 is a deficient number, since it is larger than the sum of its proper divisors (8269869066236).

8400683667844 is a wasteful number, since it uses less digits than its factorization.

8400683667844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667820 (or 2667818 counting only the distinct ones).

The product of its (nonzero) digits is 148635648, while the sum is 64.

The spelling of 8400683667844 in words is "eight trillion, four hundred billion, six hundred eighty-three million, six hundred sixty-seven thousand, eight hundred forty-four".