125629642242 has 48 divisors (see below), whose sum is σ = 295875478080. Its totient is φ = 38294002656.

The previous prime is 125629642231. The next prime is 125629642249. The reversal of 125629642242 is 242246926521.

125629642242 is a `hidden beast` number, since 1 + 2 + 562 + 9 + 6 + 42 + 2 + 42 = 666.

It is not an unprimeable number, because it can be changed into a prime (125629642249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2483742 + ... + 2533817.

It is an arithmetic number, because the mean of its divisors is an integer number (6164072460).

Almost surely, 2^125629642242 is an apocalyptic number.

125629642242 is an abundant number, since it is smaller than the sum of its proper divisors (170245835838).

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

125629642242 is a wasteful number, since it uses less digits than its factorization.

125629642242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5017687 (or 5017684 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The spelling of 125629642242 in words is "one hundred twenty-five billion, six hundred twenty-nine million, six hundred forty-two thousand, two hundred forty-two".