2120418868 has 24 divisors (see below), whose sum is σ = 3866335200. Its totient is φ = 1016278368.

The previous prime is 2120418863. The next prime is 2120418869. The reversal of 2120418868 is 8688140212.

It is a self number, because there is not a number n which added to its sum of digits gives 2120418868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120418863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49630 + ... + 81877.

It is an arithmetic number, because the mean of its divisors is an integer number (161097300).

Almost surely, 2^2120418868 is an apocalyptic number.

It is an amenable number.

2120418868 is a deficient number, since it is larger than the sum of its proper divisors (1745916332).

2120418868 is a wasteful number, since it uses less digits than its factorization.

2120418868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131679 (or 131677 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 2120418868 is about 46048.0061240441. The cubic root of 2120418868 is about 1284.7162576588.

The spelling of 2120418868 in words is "two billion, one hundred twenty million, four hundred eighteen thousand, eight hundred sixty-eight".