129348493289 has 4 divisors (see below), whose sum is σ = 129353182080. Its totient is φ = 129343804500.

The previous prime is 129348493229. The next prime is 129348493291. The reversal of 129348493289 is 982394843921.

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, and also an emirpimes, since its reverse is a distinct semiprime: 982394843921 = 55621 ⋅17662301.

It is a cyclic number.

It is not a de Polignac number, because 129348493289 - 2⁸ = 129348493033 is a prime.

It is a super-2 number, since 2×129348493289² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129348493229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2302769 + ... + 2358270.

It is an arithmetic number, because the mean of its divisors is an integer number (32338295520).

Almost surely, 2^129348493289 is an apocalyptic number.

It is an amenable number.

129348493289 is a deficient number, since it is larger than the sum of its proper divisors (4688791).

129348493289 is an equidigital number, since it uses as much as digits as its factorization.

129348493289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4688790.

The product of its digits is 26873856, while the sum is 62.

The spelling of 129348493289 in words is "one hundred twenty-nine billion, three hundred forty-eight million, four hundred ninety-three thousand, two hundred eighty-nine".