216287718250 has 32 divisors (see below), whose sum is σ = 407803556160. Its totient is φ = 85892662800.

The previous prime is 216287718221. The next prime is 216287718263. The reversal of 216287718250 is 52817782612.

It is a happy number.

216287718250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 216287718194 and 216287718203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3077304 + ... + 3146803.

It is an arithmetic number, because the mean of its divisors is an integer number (12743861130).

Almost surely, 2^216287718250 is an apocalyptic number.

216287718250 is a deficient number, since it is larger than the sum of its proper divisors (191515837910).

216287718250 is a wasteful number, since it uses less digits than its factorization.

216287718250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6224263 (or 6224253 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 49.

The spelling of 216287718250 in words is "two hundred sixteen billion, two hundred eighty-seven million, seven hundred eighteen thousand, two hundred fifty".