129827184242 has 16 divisors (see below), whose sum is σ = 226760150592. Its totient is φ = 54590406000.

The previous prime is 129827184233. The next prime is 129827184293. The reversal of 129827184242 is 242481728921.

It is a super-2 number, since 2×129827184242² (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 7 ways as a sum of consecutive naturals, for example, 87483884 + ... + 87485367.

It is an arithmetic number, because the mean of its divisors is an integer number (14172509412).

Almost surely, 2^129827184242 is an apocalyptic number.

129827184242 is a deficient number, since it is larger than the sum of its proper divisors (96932966350).

129827184242 is a wasteful number, since it uses less digits than its factorization.

129827184242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174969313.

The product of its digits is 1032192, while the sum is 50.

The spelling of 129827184242 in words is "one hundred twenty-nine billion, eight hundred twenty-seven million, one hundred eighty-four thousand, two hundred forty-two".