197600738449 has 2 divisors, whose sum is σ = 197600738450. Its totient is φ = 197600738448.

The previous prime is 197600738383. The next prime is 197600738477. The reversal of 197600738449 is 944837006791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100096304400 + 97504434049 = 316380^2 + 312257^2 .

It is a cyclic number.

It is not a de Polignac number, because 197600738449 - 2⁹ = 197600737937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197600738393 and 197600738402.

It is not a weakly prime, because it can be changed into another prime (197600730449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98800369224 + 98800369225.

It is an arithmetic number, because the mean of its divisors is an integer number (98800369225).

Almost surely, 2^197600738449 is an apocalyptic number.

It is an amenable number.

197600738449 is a deficient number, since it is larger than the sum of its proper divisors (1).

197600738449 is an equidigital number, since it uses as much as digits as its factorization.

197600738449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 197600738449 in words is "one hundred ninety-seven billion, six hundred million, seven hundred thirty-eight thousand, four hundred forty-nine".