129872755887 has 16 divisors (see below), whose sum is σ = 198279755520. Its totient is φ = 74071098432.

The previous prime is 129872755879. The next prime is 129872755919. The reversal of 129872755887 is 788557278921.

It is not a de Polignac number, because 129872755887 - 2³ = 129872755879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129872755877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5901462 + ... + 5923427.

It is an arithmetic number, because the mean of its divisors is an integer number (12392484720).

Almost surely, 2^129872755887 is an apocalyptic number.

129872755887 is a deficient number, since it is larger than the sum of its proper divisors (68406999633).

129872755887 is a wasteful number, since it uses less digits than its factorization.

129872755887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11825422.

The product of its digits is 158054400, while the sum is 69.

The spelling of 129872755887 in words is "one hundred twenty-nine billion, eight hundred seventy-two million, seven hundred fifty-five thousand, eight hundred eighty-seven".