197645485401 has 96 divisors (see below), whose sum is σ = 369518542848. Its totient is φ = 102783401280.

The previous prime is 197645485393. The next prime is 197645485403. The reversal of 197645485401 is 104584546791.

197645485401 is a `hidden beast` number, since 1 + 9 + 76 + 454 + 85 + 40 + 1 = 666.

It is not a de Polignac number, because 197645485401 - 2³ = 197645485393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197645485403) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 1507080 + ... + 1632966.

It is an arithmetic number, because the mean of its divisors is an integer number (3849151488).

Almost surely, 2^197645485401 is an apocalyptic number.

It is an amenable number.

197645485401 is a deficient number, since it is larger than the sum of its proper divisors (171873057447).

197645485401 is a wasteful number, since it uses less digits than its factorization.

197645485401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125993 (or 125981 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 197645485401 in words is "one hundred ninety-seven billion, six hundred forty-five million, four hundred eighty-five thousand, four hundred one".