197446746648 has 16 divisors (see below), whose sum is σ = 493616866680. Its totient is φ = 65815582208.

The previous prime is 197446746647. The next prime is 197446746677. The reversal of 197446746648 is 846647644791.

197446746648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197446746643) 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 3 ways as a sum of consecutive naturals, for example, 4113473865 + ... + 4113473912.

Almost surely, 2^197446746648 is an apocalyptic number.

It is an amenable number.

197446746648 is an abundant number, since it is smaller than the sum of its proper divisors (296170120032).

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

197446746648 is a wasteful number, since it uses less digits than its factorization.

197446746648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8226947786 (or 8226947782 counting only the distinct ones).

The product of its digits is 195084288, while the sum is 66.

The spelling of 197446746648 in words is "one hundred ninety-seven billion, four hundred forty-six million, seven hundred forty-six thousand, six hundred forty-eight".