29438434817 has 8 divisors (see below), whose sum is σ = 32117967072. Its totient is φ = 26759454400.

The previous prime is 29438434783. The next prime is 29438434877. The reversal of 29438434817 is 71843483492.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 29438434817 - 2¹⁰ = 29438433793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29438434877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22184 + ... + 243657.

It is an arithmetic number, because the mean of its divisors is an integer number (4014745884).

Almost surely, 2^29438434817 is an apocalyptic number.

It is an amenable number.

29438434817 is a deficient number, since it is larger than the sum of its proper divisors (2679532255).

29438434817 is a wasteful number, since it uses less digits than its factorization.

29438434817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275919.

The product of its digits is 4644864, while the sum is 53.

The spelling of 29438434817 in words is "twenty-nine billion, four hundred thirty-eight million, four hundred thirty-four thousand, eight hundred seventeen".