125389116742 has 4 divisors (see below), whose sum is σ = 188083675116. Its totient is φ = 62694558370.

The previous prime is 125389116737. The next prime is 125389116773. The reversal of 125389116742 is 247611983521.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31347279184 + ... + 31347279187.

It is an arithmetic number, because the mean of its divisors is an integer number (47020918779).

Almost surely, 2^125389116742 is an apocalyptic number.

125389116742 is a deficient number, since it is larger than the sum of its proper divisors (62694558374).

125389116742 is an equidigital number, since it uses as much as digits as its factorization.

125389116742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62694558373.

The product of its digits is 725760, while the sum is 49.

The spelling of 125389116742 in words is "one hundred twenty-five billion, three hundred eighty-nine million, one hundred sixteen thousand, seven hundred forty-two".