129871558443 has 16 divisors (see below), whose sum is σ = 193297205376. Its totient is φ = 76879568640.

The previous prime is 129871558417. The next prime is 129871558447. The reversal of 129871558443 is 344855178921.

It is a de Polignac number, because none of the positive numbers 2^k-129871558443 is a prime.

It is a super-3 number, since 3×129871558443³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (129871558447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45760230 + ... + 45763067.

It is an arithmetic number, because the mean of its divisors is an integer number (12081075336).

Almost surely, 2^129871558443 is an apocalyptic number.

129871558443 is a deficient number, since it is larger than the sum of its proper divisors (63425646933).

129871558443 is a wasteful number, since it uses less digits than its factorization.

129871558443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91523354.

The product of its digits is 9676800, while the sum is 57.

The spelling of 129871558443 in words is "one hundred twenty-nine billion, eight hundred seventy-one million, five hundred fifty-eight thousand, four hundred forty-three".