195455839988 has 6 divisors (see below), whose sum is σ = 342047719986. Its totient is φ = 97727919992.

The previous prime is 195455839927. The next prime is 195455840033. The reversal of 195455839988 is 889938554591.

It is a happy number.

195455839988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 193892270224 + 1563569764 = 440332^2 + 39542^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 24431979995 + ... + 24431980002.

It is an arithmetic number, because the mean of its divisors is an integer number (57007953331).

Almost surely, 2^195455839988 is an apocalyptic number.

It is an amenable number.

195455839988 is a deficient number, since it is larger than the sum of its proper divisors (146591879998).

195455839988 is a wasteful number, since it uses less digits than its factorization.

195455839988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48863960001 (or 48863959999 counting only the distinct ones).

The product of its digits is 559872000, while the sum is 74.

The spelling of 195455839988 in words is "one hundred ninety-five billion, four hundred fifty-five million, eight hundred thirty-nine thousand, nine hundred eighty-eight".