197655857068 has 24 divisors (see below), whose sum is σ = 361094575968. Its totient is φ = 94489735296.

The previous prime is 197655857053. The next prime is 197655857071. The reversal of 197655857068 is 860758556791.

It is a junction number, because it is equal to n+sod(n) for n = 197655856994 and 197655857012.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 257521 + ... + 679432.

It is an arithmetic number, because the mean of its divisors is an integer number (15045607332).

Almost surely, 2^197655857068 is an apocalyptic number.

It is an amenable number.

197655857068 is a deficient number, since it is larger than the sum of its proper divisors (163438718900).

197655857068 is a wasteful number, since it uses less digits than its factorization.

197655857068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939273 (or 939271 counting only the distinct ones).

The product of its (nonzero) digits is 127008000, while the sum is 67.

The spelling of 197655857068 in words is "one hundred ninety-seven billion, six hundred fifty-five million, eight hundred fifty-seven thousand, sixty-eight".