125829199871 has 8 divisors (see below), whose sum is σ = 131419100160. Its totient is φ = 120249221752.

The previous prime is 125829199849. The next prime is 125829199889. The reversal of 125829199871 is 178991928521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125829199871 - 2⁶ = 125829199807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125829199801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2454611 + ... + 2505348.

It is an arithmetic number, because the mean of its divisors is an integer number (16427387520).

Almost surely, 2^125829199871 is an apocalyptic number.

125829199871 is a deficient number, since it is larger than the sum of its proper divisors (5589900289).

125829199871 is a wasteful number, since it uses less digits than its factorization.

125829199871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4961085.

The product of its digits is 6531840, while the sum is 62.

The spelling of 125829199871 in words is "one hundred twenty-five billion, eight hundred twenty-nine million, one hundred ninety-nine thousand, eight hundred seventy-one".