197081983641 has 8 divisors (see below), whose sum is σ = 262939300960. Its totient is φ = 131306327712.

The previous prime is 197081983621. The next prime is 197081983649. The reversal of 197081983641 is 146389180791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 197081983641 - 2⁹ = 197081983129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197081983649) 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 7 ways as a sum of consecutive naturals, for example, 20409715 + ... + 20419368.

It is an arithmetic number, because the mean of its divisors is an integer number (32867412620).

Almost surely, 2^197081983641 is an apocalyptic number.

It is an amenable number.

197081983641 is a deficient number, since it is larger than the sum of its proper divisors (65857317319).

197081983641 is a wasteful number, since it uses less digits than its factorization.

197081983641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40830695.

The product of its (nonzero) digits is 2612736, while the sum is 57.

The spelling of 197081983641 in words is "one hundred ninety-seven billion, eighty-one million, nine hundred eighty-three thousand, six hundred forty-one".