201939844986899 has 2 divisors, whose sum is σ = 201939844986900. Its totient is φ = 201939844986898.

The previous prime is 201939844986889. The next prime is 201939844986991. The reversal of 201939844986899 is 998689448939102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201939844986899 - 2⁴ = 201939844986883 is a prime.

It is not a weakly prime, because it can be changed into another prime (201939844986829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100969922493449 + 100969922493450.

It is an arithmetic number, because the mean of its divisors is an integer number (100969922493450).

Almost surely, 2^{201939844986899} is an apocalyptic number.

201939844986899 is a deficient number, since it is larger than the sum of its proper divisors (1).

201939844986899 is an equidigital number, since it uses as much as digits as its factorization.

201939844986899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17414258688, while the sum is 89.

The spelling of 201939844986899 in words is "two hundred one trillion, nine hundred thirty-nine billion, eight hundred forty-four million, nine hundred eighty-six thousand, eight hundred ninety-nine".