29438078673 has 4 divisors (see below), whose sum is σ = 39250771568. Its totient is φ = 19625385780.

The previous prime is 29438078651. The next prime is 29438078687. The reversal of 29438078673 is 37687083492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 29438078673 - 2¹⁴ = 29438062289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29438073673) 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, 4906346443 + ... + 4906346448.

It is an arithmetic number, because the mean of its divisors is an integer number (9812692892).

Almost surely, 2^29438078673 is an apocalyptic number.

It is an amenable number.

29438078673 is a deficient number, since it is larger than the sum of its proper divisors (9812692895).

29438078673 is an equidigital number, since it uses as much as digits as its factorization.

29438078673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9812692894.

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 29438078673 in words is "twenty-nine billion, four hundred thirty-eight million, seventy-eight thousand, six hundred seventy-three".