125844478427 has 2 divisors, whose sum is σ = 125844478428. Its totient is φ = 125844478426.

The previous prime is 125844478379. The next prime is 125844478471. The reversal of 125844478427 is 724874448521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125844478427 - 2²⁶ = 125777369563 is a prime.

It is not a weakly prime, because it can be changed into another prime (125844472427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62922239213 + 62922239214.

It is an arithmetic number, because the mean of its divisors is an integer number (62922239214).

Almost surely, 2^125844478427 is an apocalyptic number.

125844478427 is a deficient number, since it is larger than the sum of its proper divisors (1).

125844478427 is an equidigital number, since it uses as much as digits as its factorization.

125844478427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16056320, while the sum is 56.

The spelling of 125844478427 in words is "one hundred twenty-five billion, eight hundred forty-four million, four hundred seventy-eight thousand, four hundred twenty-seven".