125829199873 has 8 divisors (see below), whose sum is σ = 142640388800. Its totient is φ = 110036870928.

The previous prime is 125829199849. The next prime is 125829199889. The reversal of 125829199873 is 378991928521.

It is a happy number.

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 125829199873 - 2⁵ = 125829199841 is a prime.

It is a super-2 number, since 2×125829199873² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125829139873) 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, 254714733 + ... + 254715226.

It is an arithmetic number, because the mean of its divisors is an integer number (17830048600).

Almost surely, 2^125829199873 is an apocalyptic number.

125829199873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

125829199873 is a deficient number, since it is larger than the sum of its proper divisors (16811188927).

125829199873 is a wasteful number, since it uses less digits than its factorization.

125829199873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509429991.

The product of its digits is 19595520, while the sum is 64.

The spelling of 125829199873 in words is "one hundred twenty-five billion, eight hundred twenty-nine million, one hundred ninety-nine thousand, eight hundred seventy-three".