125796185591 has 12 divisors (see below), whose sum is σ = 133646722608. Its totient is φ = 118382694912.

The previous prime is 125796185563. The next prime is 125796185597. The reversal of 125796185591 is 195581697521.

It is not a de Polignac number, because 125796185591 - 2¹⁸ = 125795923447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125796185591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125796185597) 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, 3175790 + ... + 3215156.

It is an arithmetic number, because the mean of its divisors is an integer number (11137226884).

Almost surely, 2^125796185591 is an apocalyptic number.

125796185591 is a deficient number, since it is larger than the sum of its proper divisors (7850537017).

125796185591 is a wasteful number, since it uses less digits than its factorization.

125796185591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50458 (or 50441 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 59.

The spelling of 125796185591 in words is "one hundred twenty-five billion, seven hundred ninety-six million, one hundred eighty-five thousand, five hundred ninety-one".