201850020439 has 2 divisors, whose sum is σ = 201850020440. Its totient is φ = 201850020438.

The previous prime is 201850020413. The next prime is 201850020443. The reversal of 201850020439 is 934020058102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201850020439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201850020499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100925010219 + 100925010220.

It is an arithmetic number, because the mean of its divisors is an integer number (100925010220).

Almost surely, 2^201850020439 is an apocalyptic number.

201850020439 is a deficient number, since it is larger than the sum of its proper divisors (1).

201850020439 is an equidigital number, since it uses as much as digits as its factorization.

201850020439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 201850020439 in words is "two hundred one billion, eight hundred fifty million, twenty thousand, four hundred thirty-nine".