129930978358982 has 16 divisors (see below), whose sum is σ = 195560183800800. Its totient is φ = 64744528540800.

The previous prime is 129930978358963. The next prime is 129930978358997. The reversal of 129930978358982 is 289853879039921.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 129930978358982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68593682 + ... + 70462437.

It is an arithmetic number, because the mean of its divisors is an integer number (12222511487550).

Almost surely, 2^{129930978358982} is an apocalyptic number.

129930978358982 is a deficient number, since it is larger than the sum of its proper divisors (65629205441818).

129930978358982 is a wasteful number, since it uses less digits than its factorization.

129930978358982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139057711.

The product of its (nonzero) digits is 4232632320, while the sum is 83.

The spelling of 129930978358982 in words is "one hundred twenty-nine trillion, nine hundred thirty billion, nine hundred seventy-eight million, three hundred fifty-eight thousand, nine hundred eighty-two".