129177340873 has 8 divisors (see below), whose sum is σ = 149092943040. Its totient is φ = 109627162800.

The previous prime is 129177340843. The next prime is 129177340879. The reversal of 129177340873 is 378043771921.

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 129177340873 - 2⁵ = 129177340841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129177340873.

It is not an unprimeable number, because it can be changed into a prime (129177340879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91355263 + ... + 91356676.

It is an arithmetic number, because the mean of its divisors is an integer number (18636617880).

Almost surely, 2^129177340873 is an apocalyptic number.

It is an amenable number.

129177340873 is a deficient number, since it is larger than the sum of its proper divisors (19915602167).

129177340873 is a wasteful number, since it uses less digits than its factorization.

129177340873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182712047.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 129177340873 in words is "one hundred twenty-nine billion, one hundred seventy-seven million, three hundred forty thousand, eight hundred seventy-three".