129120382258 has 96 divisors (see below), whose sum is σ = 231547680000. Its totient is φ = 53827804800.

The previous prime is 129120382247. The next prime is 129120382271. The reversal of 129120382258 is 852283021921.

It is a super-2 number, since 2×129120382258² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 369972268 + ... + 369972616.

It is an arithmetic number, because the mean of its divisors is an integer number (2411955000).

Almost surely, 2^129120382258 is an apocalyptic number.

129120382258 is a deficient number, since it is larger than the sum of its proper divisors (102427297742).

129120382258 is a wasteful number, since it uses less digits than its factorization.

129120382258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 129120382258 in words is "one hundred twenty-nine billion, one hundred twenty million, three hundred eighty-two thousand, two hundred fifty-eight".