29681834211 has 16 divisors (see below), whose sum is σ = 44057509920. Its totient is φ = 19749899520.

The previous prime is 29681834207. The next prime is 29681834261. The reversal of 29681834211 is 11243818692.

29681834211 is a `hidden beast` number, since 296 + 8 + 1 + 8 + 342 + 11 = 666.

It is not a de Polignac number, because 29681834211 - 2² = 29681834207 is a prime.

It is a super-2 number, since 2×29681834211² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29681834261) 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 15 ways as a sum of consecutive naturals, for example, 1040950 + ... + 1069083.

It is an arithmetic number, because the mean of its divisors is an integer number (2753594370).

Almost surely, 2^29681834211 is an apocalyptic number.

29681834211 is a deficient number, since it is larger than the sum of its proper divisors (14375675709).

29681834211 is a wasteful number, since it uses less digits than its factorization.

29681834211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110563 (or 2110557 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The spelling of 29681834211 in words is "twenty-nine billion, six hundred eighty-one million, eight hundred thirty-four thousand, two hundred eleven".