129691754982 has 24 divisors (see below), whose sum is σ = 283780972800. Its totient is φ = 42802558800.

The previous prime is 129691754981. The next prime is 129691754993. The reversal of 129691754982 is 289457196921.

129691754982 is a `hidden beast` number, since 1 + 2 + 9 + 6 + 9 + 1 + 7 + 549 + 82 = 666.

It is a super-2 number, since 2×129691754982² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129691754981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35666982 + ... + 35670617.

It is an arithmetic number, because the mean of its divisors is an integer number (11824207200).

Almost surely, 2^129691754982 is an apocalyptic number.

129691754982 is an abundant number, since it is smaller than the sum of its proper divisors (154089217818).

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

129691754982 is a wasteful number, since it uses less digits than its factorization.

129691754982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71337708 (or 71337705 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The spelling of 129691754982 in words is "one hundred twenty-nine billion, six hundred ninety-one million, seven hundred fifty-four thousand, nine hundred eighty-two".