21868482820214 has 32 divisors (see below), whose sum is σ = 33852268698336. Its totient is φ = 10587262533120.

The previous prime is 21868482820211. The next prime is 21868482820229. The reversal of 21868482820214 is 41202828486812.

It is a self number, because there is not a number n which added to its sum of digits gives 21868482820214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21868482820211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173142974 + ... + 173269230.

It is an arithmetic number, because the mean of its divisors is an integer number (1057883396823).

Almost surely, 2^{21868482820214} is an apocalyptic number.

21868482820214 is a deficient number, since it is larger than the sum of its proper divisors (11983785878122).

21868482820214 is a wasteful number, since it uses less digits than its factorization.

21868482820214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137600.

The product of its (nonzero) digits is 6291456, while the sum is 56.

The spelling of 21868482820214 in words is "twenty-one trillion, eight hundred sixty-eight billion, four hundred eighty-two million, eight hundred twenty thousand, two hundred fourteen".