125066859439 has 4 divisors (see below), whose sum is σ = 125613003160. Its totient is φ = 124520715720.

The previous prime is 125066859419. The next prime is 125066859493. The reversal of 125066859439 is 934958660521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125066859439 - 2²¹ = 125064762287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125066859419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273071517 + ... + 273071974.

It is an arithmetic number, because the mean of its divisors is an integer number (31403250790).

Almost surely, 2^125066859439 is an apocalyptic number.

125066859439 is a deficient number, since it is larger than the sum of its proper divisors (546143721).

125066859439 is an equidigital number, since it uses as much as digits as its factorization.

125066859439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546143720.

The product of its (nonzero) digits is 13996800, while the sum is 58.

The spelling of 125066859439 in words is "one hundred twenty-five billion, sixty-six million, eight hundred fifty-nine thousand, four hundred thirty-nine".