129508200338 has 64 divisors (see below), whose sum is σ = 216716093568. Its totient is φ = 57551070720.

The previous prime is 129508200323. The next prime is 129508200389. The reversal of 129508200338 is 833002805921.

It is a junction number, because it is equal to n+sod(n) for n = 129508200295 and 129508200304.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 191296856 + ... + 191297532.

It is an arithmetic number, because the mean of its divisors is an integer number (3386188962).

Almost surely, 2^129508200338 is an apocalyptic number.

129508200338 is a deficient number, since it is larger than the sum of its proper divisors (87207893230).

129508200338 is a wasteful number, since it uses less digits than its factorization.

129508200338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 129508200338 in words is "one hundred twenty-nine billion, five hundred eight million, two hundred thousand, three hundred thirty-eight".