29144550069 has 12 divisors (see below), whose sum is σ = 42108901900. Its totient is φ = 19424522304.

The previous prime is 29144550067. The next prime is 29144550077. The reversal of 29144550069 is 96005544192.

29144550069 is a `hidden beast` number, since 2 + 91 + 4 + 4 + 550 + 0 + 6 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19582643844 + 9561906225 = 139938^2 + 97785^2 .

It is not a de Polignac number, because 29144550069 - 2¹ = 29144550067 is a prime.

It is a super-2 number, since 2×29144550069² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29144550067) 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 11 ways as a sum of consecutive naturals, for example, 395674 + ... + 463515.

Almost surely, 2^29144550069 is an apocalyptic number.

It is an amenable number.

29144550069 is a deficient number, since it is larger than the sum of its proper divisors (12964351831).

29144550069 is a wasteful number, since it uses less digits than its factorization.

29144550069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862964 (or 862961 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 29144550069 in words is "twenty-nine billion, one hundred forty-four million, five hundred fifty thousand, sixty-nine".