216423034929 has 24 divisors (see below), whose sum is σ = 314824798080. Its totient is φ = 143263780128.

The previous prime is 216423034921. The next prime is 216423034981. The reversal of 216423034929 is 929430324612.

216423034929 is a `hidden beast` number, since 216 + 42 + 30 + 349 + 29 = 666.

It is not a de Polignac number, because 216423034929 - 2³ = 216423034921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216423034921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 601419 + ... + 891375.

It is an arithmetic number, because the mean of its divisors is an integer number (13117699920).

Almost surely, 2^216423034929 is an apocalyptic number.

It is an amenable number.

216423034929 is a deficient number, since it is larger than the sum of its proper divisors (98401763151).

216423034929 is a wasteful number, since it uses less digits than its factorization.

216423034929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290549 (or 290546 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 216423034929 in words is "two hundred sixteen billion, four hundred twenty-three million, thirty-four thousand, nine hundred twenty-nine".