129682696242 has 64 divisors (see below), whose sum is σ = 293024083968. Its totient is φ = 37906056000.

The previous prime is 129682696237. The next prime is 129682696271. The reversal of 129682696242 is 242696286921.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 524892 + ... + 731352.

It is an arithmetic number, because the mean of its divisors is an integer number (4578501312).

Almost surely, 2^129682696242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129682696242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146512041984).

129682696242 is an abundant number, since it is smaller than the sum of its proper divisors (163341387726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129682696242 is a wasteful number, since it uses less digits than its factorization.

129682696242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206815.

The product of its digits is 8957952, while the sum is 57.

The spelling of 129682696242 in words is "one hundred twenty-nine billion, six hundred eighty-two million, six hundred ninety-six thousand, two hundred forty-two".