197885368808 has 8 divisors (see below), whose sum is σ = 371035066530. Its totient is φ = 98942684400.

The previous prime is 197885368757. The next prime is 197885368829. The reversal of 197885368808 is 808863588791.

It can be written as a sum of positive squares in only one way, i.e., 182450288164 + 15435080644 = 427142^2 + 124238^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12367835543 + ... + 12367835558.

Almost surely, 2^197885368808 is an apocalyptic number.

It is an amenable number.

197885368808 is a deficient number, since it is larger than the sum of its proper divisors (173149697722).

197885368808 is a wasteful number, since it uses less digits than its factorization.

197885368808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24735671107 (or 24735671103 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 71.

The spelling of 197885368808 in words is "one hundred ninety-seven billion, eight hundred eighty-five million, three hundred sixty-eight thousand, eight hundred eight".