125687644083 has 32 divisors (see below), whose sum is σ = 188714668800. Its totient is φ = 82669439808.

The previous prime is 125687644057. The next prime is 125687644087. The reversal of 125687644083 is 380446786521.

It is a happy number.

125687644083 is a `hidden beast` number, since 1 + 2 + 56 + 8 + 76 + 440 + 83 = 666.

It is not a de Polignac number, because 125687644083 - 2⁵ = 125687644051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125687644087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 498708 + ... + 707166.

It is an arithmetic number, because the mean of its divisors is an integer number (5897333400).

Almost surely, 2^125687644083 is an apocalyptic number.

125687644083 is a deficient number, since it is larger than the sum of its proper divisors (63027024717).

125687644083 is a wasteful number, since it uses less digits than its factorization.

125687644083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208768 (or 208762 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 125687644083 in words is "one hundred twenty-five billion, six hundred eighty-seven million, six hundred forty-four thousand, eighty-three".