201795289427 has 2 divisors, whose sum is σ = 201795289428. Its totient is φ = 201795289426.

The previous prime is 201795289411. The next prime is 201795289447. The reversal of 201795289427 is 724982597102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201795289427 - 2⁴ = 201795289411 is a prime.

It is not a weakly prime, because it can be changed into another prime (201795289447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100897644713 + 100897644714.

It is an arithmetic number, because the mean of its divisors is an integer number (100897644714).

Almost surely, 2^201795289427 is an apocalyptic number.

201795289427 is a deficient number, since it is larger than the sum of its proper divisors (1).

201795289427 is an equidigital number, since it uses as much as digits as its factorization.

201795289427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 201795289427 in words is "two hundred one billion, seven hundred ninety-five million, two hundred eighty-nine thousand, four hundred twenty-seven".