125293008609 has 12 divisors (see below), whose sum is σ = 191624601636. Its totient is φ = 78615220992.

The previous prime is 125293008569. The next prime is 125293008611. The reversal of 125293008609 is 906800392521.

125293008609 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 9 + 30 + 0 + 8 + 609 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 43898630400 + 81394378209 = 209520^2 + 285297^2 .

It is not a de Polignac number, because 125293008609 - 2¹¹ = 125293006561 is a prime.

It is a super-2 number, since 2×125293008609² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125293004609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409454124 + ... + 409454429.

It is an arithmetic number, because the mean of its divisors is an integer number (15968716803).

Almost surely, 2^125293008609 is an apocalyptic number.

It is an amenable number.

125293008609 is a deficient number, since it is larger than the sum of its proper divisors (66331593027).

125293008609 is a wasteful number, since it uses less digits than its factorization.

125293008609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818908576 (or 818908573 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 125293008609 in words is "one hundred twenty-five billion, two hundred ninety-three million, eight thousand, six hundred nine".