129200000048 has 40 divisors (see below), whose sum is σ = 286340744448. Its totient is φ = 55322068032.

The previous prime is 129200000029. The next prime is 129200000063. The reversal of 129200000048 is 840000002921.

It is a junction number, because it is equal to n+sod(n) for n = 129199999972 and 129200000026.

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 in 7 ways as a sum of consecutive naturals, for example, 387836 + ... + 639387.

Almost surely, 2^129200000048 is an apocalyptic number.

It is an amenable number.

129200000048 is an abundant number, since it is smaller than the sum of its proper divisors (157140744400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129200000048 is a wasteful number, since it uses less digits than its factorization.

129200000048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028361 (or 1028355 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 129200000048 its reverse (840000002921), we get a palindrome (969200002969).

The spelling of 129200000048 in words is "one hundred twenty-nine billion, two hundred million, forty-eight", and thus it is an aban number.