125531728586 has 32 divisors (see below), whose sum is σ = 206444541888. Its totient is φ = 56774755840.

The previous prime is 125531728583. The next prime is 125531728591. The reversal of 125531728586 is 685827135521.

It is not an unprimeable number, because it can be changed into a prime (125531728583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3609416 + ... + 3644028.

It is an arithmetic number, because the mean of its divisors is an integer number (6451391934).

Almost surely, 2^125531728586 is an apocalyptic number.

125531728586 is a deficient number, since it is larger than the sum of its proper divisors (80912813302).

125531728586 is a wasteful number, since it uses less digits than its factorization.

125531728586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35446.

The product of its digits is 4032000, while the sum is 53.

The spelling of 125531728586 in words is "one hundred twenty-five billion, five hundred thirty-one million, seven hundred twenty-eight thousand, five hundred eighty-six".