125844485109 has 8 divisors (see below), whose sum is σ = 191763024960. Its totient is φ = 71911134336.

The previous prime is 125844485093. The next prime is 125844485159. The reversal of 125844485109 is 901584448521.

It is a happy number.

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

It is not a de Polignac number, because 125844485109 - 2⁴ = 125844485093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125844485159) 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 7 ways as a sum of consecutive naturals, for example, 2996297244 + ... + 2996297285.

It is an arithmetic number, because the mean of its divisors is an integer number (23970378120).

Almost surely, 2^125844485109 is an apocalyptic number.

It is an amenable number.

125844485109 is a deficient number, since it is larger than the sum of its proper divisors (65918539851).

125844485109 is an equidigital number, since it uses as much as digits as its factorization.

125844485109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992594539.

The product of its (nonzero) digits is 1843200, while the sum is 51.

The spelling of 125844485109 in words is "one hundred twenty-five billion, eight hundred forty-four million, four hundred eighty-five thousand, one hundred nine".