29872316829 has 8 divisors (see below), whose sum is σ = 39836861632. Its totient is φ = 19911324960.

The previous prime is 29872316821. The next prime is 29872316833. The reversal of 29872316829 is 92861327892.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29872316829 - 2³ = 29872316821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29872316821) 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 7 ways as a sum of consecutive naturals, for example, 868552 + ... + 902289.

It is an arithmetic number, because the mean of its divisors is an integer number (4979607704).

Almost surely, 2^29872316829 is an apocalyptic number.

It is an amenable number.

29872316829 is a deficient number, since it is larger than the sum of its proper divisors (9964544803).

29872316829 is a wasteful number, since it uses less digits than its factorization.

29872316829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776467.

The product of its digits is 5225472, while the sum is 57.

The spelling of 29872316829 in words is "twenty-nine billion, eight hundred seventy-two million, three hundred sixteen thousand, eight hundred twenty-nine".