2118866936 has 8 divisors (see below), whose sum is σ = 3972875520. Its totient is φ = 1059433464.

The previous prime is 2118866917. The next prime is 2118866963. The reversal of 2118866936 is 6396688112.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132429176 + ... + 132429191.

It is an arithmetic number, because the mean of its divisors is an integer number (496609440).

Almost surely, 2^2118866936 is an apocalyptic number.

It is an amenable number.

2118866936 is a deficient number, since it is larger than the sum of its proper divisors (1854008584).

2118866936 is a wasteful number, since it uses less digits than its factorization.

2118866936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264858373 (or 264858369 counting only the distinct ones).

The product of its digits is 746496, while the sum is 50.

The square root of 2118866936 is about 46031.1517996237. The cubic root of 2118866936 is about 1284.4027537379.

The spelling of 2118866936 in words is "two billion, one hundred eighteen million, eight hundred sixty-six thousand, nine hundred thirty-six".