201873335249 has 2 divisors, whose sum is σ = 201873335250. Its totient is φ = 201873335248.

The previous prime is 201873335233. The next prime is 201873335273. The reversal of 201873335249 is 942533378102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104009475025 + 97863860224 = 322505^2 + 312832^2 .

It is a cyclic number.

It is not a de Polignac number, because 201873335249 - 2⁴ = 201873335233 is a prime.

It is not a weakly prime, because it can be changed into another prime (201873337249) 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 as a sum of consecutive naturals, namely, 100936667624 + 100936667625.

It is an arithmetic number, because the mean of its divisors is an integer number (100936667625).

Almost surely, 2^201873335249 is an apocalyptic number.

It is an amenable number.

201873335249 is a deficient number, since it is larger than the sum of its proper divisors (1).

201873335249 is an equidigital number, since it uses as much as digits as its factorization.

201873335249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 201873335249 in words is "two hundred one billion, eight hundred seventy-three million, three hundred thirty-five thousand, two hundred forty-nine".