197600737897 has 2 divisors, whose sum is σ = 197600737898. Its totient is φ = 197600737896.

The previous prime is 197600737883. The next prime is 197600737933. The reversal of 197600737897 is 798737006791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189765655641 + 7835082256 = 435621^2 + 88516^2 .

It is a cyclic number.

It is not a de Polignac number, because 197600737897 - 2¹⁵ = 197600705129 is a prime.

It is not a weakly prime, because it can be changed into another prime (197600737837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98800368948 + 98800368949.

It is an arithmetic number, because the mean of its divisors is an integer number (98800368949).

Almost surely, 2^197600737897 is an apocalyptic number.

It is an amenable number.

197600737897 is a deficient number, since it is larger than the sum of its proper divisors (1).

197600737897 is an equidigital number, since it uses as much as digits as its factorization.

197600737897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28005264, while the sum is 64.

The spelling of 197600737897 in words is "one hundred ninety-seven billion, six hundred million, seven hundred thirty-seven thousand, eight hundred ninety-seven".