125688543627138 has 16 divisors (see below), whose sum is σ = 251378396618976. Its totient is φ = 41895962981600.

The previous prime is 125688543627061. The next prime is 125688543627173. The reversal of 125688543627138 is 831726345886521.

It is a super-3 number, since 3×125688543627138³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53306763 + ... + 55614638.

It is an arithmetic number, because the mean of its divisors is an integer number (15711149788686).

Almost surely, 2^{125688543627138} is an apocalyptic number.

125688543627138 is an abundant number, since it is smaller than the sum of its proper divisors (125689852991838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125688543627138 is a wasteful number, since it uses less digits than its factorization.

125688543627138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109113729.

The product of its digits is 464486400, while the sum is 69.

The spelling of 125688543627138 in words is "one hundred twenty-five trillion, six hundred eighty-eight billion, five hundred forty-three million, six hundred twenty-seven thousand, one hundred thirty-eight".