129334377218 has 8 divisors (see below), whose sum is σ = 194004990480. Its totient is φ = 64666047060.

The previous prime is 129334377191. The next prime is 129334377241. The reversal of 129334377218 is 812773433921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×129334377218² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421328 + ... + 660443.

It is an arithmetic number, because the mean of its divisors is an integer number (24250623810).

Almost surely, 2^129334377218 is an apocalyptic number.

129334377218 is a deficient number, since it is larger than the sum of its proper divisors (64670613262).

129334377218 is a wasteful number, since it uses less digits than its factorization.

129334377218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141552.

The product of its digits is 1524096, while the sum is 50.

The spelling of 129334377218 in words is "one hundred twenty-nine billion, three hundred thirty-four million, three hundred seventy-seven thousand, two hundred eighteen".