200493571897 has 2 divisors, whose sum is σ = 200493571898. Its totient is φ = 200493571896.

The previous prime is 200493571867. The next prime is 200493571903. The reversal of 200493571897 is 798175394002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184125951801 + 16367620096 = 429099^2 + 127936^2 .

It is a cyclic number.

It is not a de Polignac number, because 200493571897 - 2¹¹ = 200493569849 is a prime.

It is not a weakly prime, because it can be changed into another prime (200493571867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100246785948 + 100246785949.

It is an arithmetic number, because the mean of its divisors is an integer number (100246785949).

Almost surely, 2^200493571897 is an apocalyptic number.

It is an amenable number.

200493571897 is a deficient number, since it is larger than the sum of its proper divisors (1).

200493571897 is an equidigital number, since it uses as much as digits as its factorization.

200493571897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The spelling of 200493571897 in words is "two hundred billion, four hundred ninety-three million, five hundred seventy-one thousand, eight hundred ninety-seven".