129103882792 has 8 divisors (see below), whose sum is σ = 242069780250. Its totient is φ = 64551941392.

The previous prime is 129103882763. The next prime is 129103882829. The reversal of 129103882792 is 297288301921.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 113788830276 + 15315052516 = 337326^2 + 123754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8068992667 + ... + 8068992682.

Almost surely, 2^129103882792 is an apocalyptic number.

It is an amenable number.

129103882792 is a deficient number, since it is larger than the sum of its proper divisors (112965897458).

129103882792 is a wasteful number, since it uses less digits than its factorization.

129103882792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16137985355 (or 16137985351 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 129103882792 in words is "one hundred twenty-nine billion, one hundred three million, eight hundred eighty-two thousand, seven hundred ninety-two".