125844478442 has 8 divisors (see below), whose sum is σ = 190016828832. Its totient is φ = 62505535500.

The previous prime is 125844478427. The next prime is 125844478471. The reversal of 125844478442 is 244874448521.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208351484 + ... + 208352087.

It is an arithmetic number, because the mean of its divisors is an integer number (23752103604).

Almost surely, 2^125844478442 is an apocalyptic number.

125844478442 is a deficient number, since it is larger than the sum of its proper divisors (64172350390).

125844478442 is a wasteful number, since it uses less digits than its factorization.

125844478442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416703724.

The product of its digits is 9175040, while the sum is 53.

The spelling of 125844478442 in words is "one hundred twenty-five billion, eight hundred forty-four million, four hundred seventy-eight thousand, four hundred forty-two".