129630343256 has 24 divisors (see below), whose sum is σ = 251150374260. Its totient is φ = 62724355920.

The previous prime is 129630343247. The next prime is 129630343277. The reversal of 129630343256 is 652343036921.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8423006 + ... + 8438381.

Almost surely, 2^129630343256 is an apocalyptic number.

It is an amenable number.

129630343256 is a deficient number, since it is larger than the sum of its proper divisors (121520031004).

129630343256 is a wasteful number, since it uses less digits than its factorization.

129630343256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16861455 (or 16861420 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 44.

The spelling of 129630343256 in words is "one hundred twenty-nine billion, six hundred thirty million, three hundred forty-three thousand, two hundred fifty-six".