125581269459 has 8 divisors (see below), whose sum is σ = 167770656720. Its totient is φ = 83556364256.

The previous prime is 125581269427. The next prime is 125581269461. The reversal of 125581269459 is 954962185521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125581269459 - 2⁵ = 125581269427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125581269399 and 125581269408.

It is not an unprimeable number, because it can be changed into a prime (125581269659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41118732 + ... + 41121785.

It is an arithmetic number, because the mean of its divisors is an integer number (20971332090).

Almost surely, 2^125581269459 is an apocalyptic number.

125581269459 is a deficient number, since it is larger than the sum of its proper divisors (42189387261).

125581269459 is an equidigital number, since it uses as much as digits as its factorization.

125581269459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82241029.

The product of its digits is 7776000, while the sum is 57.

The spelling of 125581269459 in words is "one hundred twenty-five billion, five hundred eighty-one million, two hundred sixty-nine thousand, four hundred fifty-nine".