129374229168887 has 4 divisors (see below), whose sum is σ = 129939182134920. Its totient is φ = 128809276202856.

The previous prime is 129374229168881. The next prime is 129374229168911. The reversal of 129374229168887 is 788861922473921.

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

It is a cyclic number.

It is not a de Polignac number, because 129374229168887 - 2¹⁴ = 129374229152503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129374229168881) 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, 282476482673 + ... + 282476483130.

It is an arithmetic number, because the mean of its divisors is an integer number (32484795533730).

Almost surely, 2^{129374229168887} is an apocalyptic number.

129374229168887 is a deficient number, since it is larger than the sum of its proper divisors (564952966033).

129374229168887 is an equidigital number, since it uses as much as digits as its factorization.

129374229168887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564952966032.

The product of its digits is 1170505728, while the sum is 77.

The spelling of 129374229168887 in words is "one hundred twenty-nine trillion, three hundred seventy-four billion, two hundred twenty-nine million, one hundred sixty-eight thousand, eight hundred eighty-seven".