197725196508 has 36 divisors (see below), whose sum is σ = 536682677832. Its totient is φ = 56492913120.

The previous prime is 197725196507. The next prime is 197725196519. The reversal of 197725196508 is 805691527791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197725196507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168133083 + ... + 168134258.

It is an arithmetic number, because the mean of its divisors is an integer number (14907852162).

Almost surely, 2^197725196508 is an apocalyptic number.

It is an amenable number.

197725196508 is an abundant number, since it is smaller than the sum of its proper divisors (338957481324).

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

197725196508 is a wasteful number, since it uses less digits than its factorization.

197725196508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336267362 (or 336267353 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 60.

The spelling of 197725196508 in words is "one hundred ninety-seven billion, seven hundred twenty-five million, one hundred ninety-six thousand, five hundred eight".