29146438289 has 4 divisors (see below), whose sum is σ = 29581459824. Its totient is φ = 28711416756.

The previous prime is 29146438259. The next prime is 29146438301. The reversal of 29146438289 is 98283464192.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 29146438289 - 2⁸ = 29146438033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29146438219) 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, 217510667 + ... + 217510800.

It is an arithmetic number, because the mean of its divisors is an integer number (7395364956).

Almost surely, 2^29146438289 is an apocalyptic number.

It is an amenable number.

29146438289 is a deficient number, since it is larger than the sum of its proper divisors (435021535).

29146438289 is an equidigital number, since it uses as much as digits as its factorization.

29146438289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435021534.

The product of its digits is 5971968, while the sum is 56.

The spelling of 29146438289 in words is "twenty-nine billion, one hundred forty-six million, four hundred thirty-eight thousand, two hundred eighty-nine".