217110929852 has 12 divisors (see below), whose sum is σ = 393045649080. Its totient is φ = 104812172976.

The previous prime is 217110929851. The next prime is 217110929863. The reversal of 217110929852 is 258929011712.

217110929852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×217110929852² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 217110929797 and 217110929806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217110929851) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 935822858 + ... + 935823089.

It is an arithmetic number, because the mean of its divisors is an integer number (32753804090).

Almost surely, 2^217110929852 is an apocalyptic number.

It is an amenable number.

217110929852 is a deficient number, since it is larger than the sum of its proper divisors (175934719228).

217110929852 is a wasteful number, since it uses less digits than its factorization.

217110929852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871645980 (or 1871645978 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 47.

The spelling of 217110929852 in words is "two hundred seventeen billion, one hundred ten million, nine hundred twenty-nine thousand, eight hundred fifty-two".