197211196386 has 24 divisors (see below), whose sum is σ = 427493227980. Its totient is φ = 65705942016.

The previous prime is 197211196367. The next prime is 197211196397. The reversal of 197211196386 is 683691112791.

197211196386 is a `hidden beast` number, since 1 + 9 + 72 + 1 + 1 + 196 + 386 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 197202605625 + 8590761 = 444075^2 + 2931^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2554531 + ... + 2630598.

Almost surely, 2^197211196386 is an apocalyptic number.

197211196386 is an abundant number, since it is smaller than the sum of its proper divisors (230282031594).

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

197211196386 is a wasteful number, since it uses less digits than its factorization.

197211196386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5187250 (or 5187247 counting only the distinct ones).

The product of its digits is 979776, while the sum is 54.

The spelling of 197211196386 in words is "one hundred ninety-seven billion, two hundred eleven million, one hundred ninety-six thousand, three hundred eighty-six".