197708632149 has 16 divisors (see below), whose sum is σ = 304195254272. Its totient is φ = 111879502128.

The previous prime is 197708632133. The next prime is 197708632159. The reversal of 197708632149 is 941236807791.

It is a happy number.

It is not a de Polignac number, because 197708632149 - 2⁴ = 197708632133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197708632159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45700249 + ... + 45704574.

It is an arithmetic number, because the mean of its divisors is an integer number (19012203392).

Almost surely, 2^197708632149 is an apocalyptic number.

It is an amenable number.

197708632149 is a deficient number, since it is larger than the sum of its proper divisors (106486622123).

197708632149 is a wasteful number, since it uses less digits than its factorization.

197708632149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91404936.

The product of its (nonzero) digits is 4572288, while the sum is 57.

The spelling of 197708632149 in words is "one hundred ninety-seven billion, seven hundred eight million, six hundred thirty-two thousand, one hundred forty-nine".