29171066429 has 4 divisors (see below), whose sum is σ = 29173575420. Its totient is φ = 29168557440.

The previous prime is 29171066401. The next prime is 29171066443. The reversal of 29171066429 is 92466017192.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23813119225 + 5357947204 = 154315^2 + 73198^2 .

It is a cyclic number.

It is not a de Polignac number, because 29171066429 - 2²⁸ = 28902630973 is a prime.

It is a super-2 number, since 2×29171066429² (a number of 22 digits) contains 22 as substring.

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 (29171066459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236974 + ... + 1260335.

It is an arithmetic number, because the mean of its divisors is an integer number (7293393855).

Almost surely, 2^29171066429 is an apocalyptic number.

It is an amenable number.

29171066429 is a deficient number, since it is larger than the sum of its proper divisors (2508991).

29171066429 is a wasteful number, since it uses less digits than its factorization.

29171066429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508990.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 29171066429 in words is "twenty-nine billion, one hundred seventy-one million, sixty-six thousand, four hundred twenty-nine".