197059639268 has 6 divisors (see below), whose sum is σ = 344854368726. Its totient is φ = 98529819632.

The previous prime is 197059639213. The next prime is 197059639307. The reversal of 197059639268 is 862936950791.

It can be written as a sum of positive squares in only one way, i.e., 151942480804 + 45117158464 = 389798^2 + 212408^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24632454905 + ... + 24632454912.

It is an arithmetic number, because the mean of its divisors is an integer number (57475728121).

Almost surely, 2^197059639268 is an apocalyptic number.

It is an amenable number.

197059639268 is a deficient number, since it is larger than the sum of its proper divisors (147794729458).

197059639268 is a wasteful number, since it uses less digits than its factorization.

197059639268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49264909821 (or 49264909819 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 65.

The spelling of 197059639268 in words is "one hundred ninety-seven billion, fifty-nine million, six hundred thirty-nine thousand, two hundred sixty-eight".