129663477042 has 16 divisors (see below), whose sum is σ = 282902131872. Its totient is φ = 39291962720.

The previous prime is 129663477023. The next prime is 129663477067. The reversal of 129663477042 is 240774366921.

It is a happy number.

It is a super-2 number, since 2×129663477042² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 982299003 + ... + 982299134.

It is an arithmetic number, because the mean of its divisors is an integer number (17681383242).

Almost surely, 2^129663477042 is an apocalyptic number.

129663477042 is an abundant number, since it is smaller than the sum of its proper divisors (153238654830).

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

129663477042 is a wasteful number, since it uses less digits than its factorization.

129663477042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964598153.

The product of its (nonzero) digits is 3048192, while the sum is 51.

The spelling of 129663477042 in words is "one hundred twenty-nine billion, six hundred sixty-three million, four hundred seventy-seven thousand, forty-two".