29086309188 has 72 divisors (see below), whose sum is σ = 77940895032. Its totient is φ = 9114304512.

The previous prime is 29086309123. The next prime is 29086309199. The reversal of 29086309188 is 88190368092.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4800826944 + 24285482244 = 69288^2 + 155838^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 496756 + ... + 552212.

It is an arithmetic number, because the mean of its divisors is an integer number (1082512431).

Almost surely, 2^29086309188 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29086309188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38970447516).

29086309188 is an abundant number, since it is smaller than the sum of its proper divisors (48854585844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29086309188 is a wasteful number, since it uses less digits than its factorization.

29086309188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56341 (or 56336 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 29086309188 in words is "twenty-nine billion, eighty-six million, three hundred nine thousand, one hundred eighty-eight".