214508745681 has 8 divisors (see below), whose sum is σ = 286264997280. Its totient is φ = 142879162272.

The previous prime is 214508745673. The next prime is 214508745709. The reversal of 214508745681 is 186547805412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 214508745681 - 2³ = 214508745673 is a prime.

It is a super-2 number, since 2×214508745681² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (214508745181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31663095 + ... + 31669868.

It is an arithmetic number, because the mean of its divisors is an integer number (35783124660).

Almost surely, 2^214508745681 is an apocalyptic number.

It is an amenable number.

214508745681 is a deficient number, since it is larger than the sum of its proper divisors (71756251599).

214508745681 is a wasteful number, since it uses less digits than its factorization.

214508745681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63334095.

The product of its (nonzero) digits is 2150400, while the sum is 51.

The spelling of 214508745681 in words is "two hundred fourteen billion, five hundred eight million, seven hundred forty-five thousand, six hundred eighty-one".