129437542184 has 16 divisors (see below), whose sum is σ = 248614792020. Its totient is φ = 63140264320.

The previous prime is 129437542177. The next prime is 129437542193. The reversal of 129437542184 is 481245734921.

It can be written as a sum of positive squares in 2 ways, for example, as 118026602500 + 11410939684 = 343550^2 + 106822^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197312999 + ... + 197313654.

Almost surely, 2^129437542184 is an apocalyptic number.

It is an amenable number.

129437542184 is a deficient number, since it is larger than the sum of its proper divisors (119177249836).

129437542184 is a wasteful number, since it uses less digits than its factorization.

129437542184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394626700 (or 394626696 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The spelling of 129437542184 in words is "one hundred twenty-nine billion, four hundred thirty-seven million, five hundred forty-two thousand, one hundred eighty-four".