2215818916850 has 48 divisors (see below), whose sum is σ = 5138397746496. Its totient is φ = 690644856000.

The previous prime is 2215818916813. The next prime is 2215818916879. The reversal of 2215818916850 is 586198185122.

2215818916850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287764841 + ... + 287772540.

It is an arithmetic number, because the mean of its divisors is an integer number (107049953052).

Almost surely, 2^{2215818916850} is an apocalyptic number.

2215818916850 is an abundant number, since it is smaller than the sum of its proper divisors (2922578829646).

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

2215818916850 is a wasteful number, since it uses less digits than its factorization.

2215818916850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575537411 (or 575537406 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 56.

The spelling of 2215818916850 in words is "two trillion, two hundred fifteen billion, eight hundred eighteen million, nine hundred sixteen thousand, eight hundred fifty".