125907789543 has 16 divisors (see below), whose sum is σ = 169015484640. Its totient is φ = 83370276864.

The previous prime is 125907789467. The next prime is 125907789559. The reversal of 125907789543 is 345987709521.

It is a happy number.

It is not a de Polignac number, because 125907789543 - 2³⁰ = 124834047719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125907789443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403455 + ... + 643887.

It is an arithmetic number, because the mean of its divisors is an integer number (10563467790).

Almost surely, 2^125907789543 is an apocalyptic number.

125907789543 is a deficient number, since it is larger than the sum of its proper divisors (43107695097).

125907789543 is a wasteful number, since it uses less digits than its factorization.

125907789543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241618.

The product of its (nonzero) digits is 19051200, while the sum is 60.

The spelling of 125907789543 in words is "one hundred twenty-five billion, nine hundred seven million, seven hundred eighty-nine thousand, five hundred forty-three".