197536838399 has 2 divisors, whose sum is σ = 197536838400. Its totient is φ = 197536838398.

The previous prime is 197536838363. The next prime is 197536838423. The reversal of 197536838399 is 993838635791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197536838399 - 2³² = 193241871103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197536838309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98768419199 + 98768419200.

It is an arithmetic number, because the mean of its divisors is an integer number (98768419200).

Almost surely, 2^197536838399 is an apocalyptic number.

197536838399 is a deficient number, since it is larger than the sum of its proper divisors (1).

197536838399 is an equidigital number, since it uses as much as digits as its factorization.

197536838399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264539520, while the sum is 71.

The spelling of 197536838399 in words is "one hundred ninety-seven billion, five hundred thirty-six million, eight hundred thirty-eight thousand, three hundred ninety-nine".