218878730014 has 16 divisors (see below), whose sum is σ = 387324573696. Its totient is φ = 90779196600.

The previous prime is 218878729999. The next prime is 218878730017. The reversal of 218878730014 is 410037878812.

It is a self number, because there is not a number n which added to its sum of digits gives 218878730014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218878730017) 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, 252164002 + ... + 252164869.

It is an arithmetic number, because the mean of its divisors is an integer number (24207785856).

Almost surely, 2^218878730014 is an apocalyptic number.

218878730014 is a deficient number, since it is larger than the sum of its proper divisors (168445843682).

218878730014 is a wasteful number, since it uses less digits than its factorization.

218878730014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504328911.

The product of its (nonzero) digits is 602112, while the sum is 49.

The spelling of 218878730014 in words is "two hundred eighteen billion, eight hundred seventy-eight million, seven hundred thirty thousand, fourteen".