2168396186836 has 12 divisors (see below), whose sum is σ = 4139665447680. Its totient is φ = 985634630360.

The previous prime is 2168396186809. The next prime is 2168396186851. The reversal of 2168396186836 is 6386816938612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24640865716 + ... + 24640865803.

It is an arithmetic number, because the mean of its divisors is an integer number (344972120640).

Almost surely, 2^{2168396186836} is an apocalyptic number.

It is an amenable number.

2168396186836 is a deficient number, since it is larger than the sum of its proper divisors (1971269260844).

2168396186836 is a wasteful number, since it uses less digits than its factorization.

2168396186836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49281731534 (or 49281731532 counting only the distinct ones).

The product of its digits is 107495424, while the sum is 67.

The spelling of 2168396186836 in words is "two trillion, one hundred sixty-eight billion, three hundred ninety-six million, one hundred eighty-six thousand, eight hundred thirty-six".