195261872142 has 16 divisors (see below), whose sum is σ = 390528444240. Its totient is φ = 65086507392.

The previous prime is 195261872083. The next prime is 195261872147. The reversal of 195261872142 is 241278162591.

195261872142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 195261872091 and 195261872100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195261872147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581784 + ... + 853812.

It is an arithmetic number, because the mean of its divisors is an integer number (24408027765).

Almost surely, 2^195261872142 is an apocalyptic number.

195261872142 is an abundant number, since it is smaller than the sum of its proper divisors (195266572098).

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

195261872142 is a wasteful number, since it uses less digits than its factorization.

195261872142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391667.

The product of its digits is 483840, while the sum is 48.

The spelling of 195261872142 in words is "one hundred ninety-five billion, two hundred sixty-one million, eight hundred seventy-two thousand, one hundred forty-two".