201985792441 has 2 divisors, whose sum is σ = 201985792442. Its totient is φ = 201985792440.

The previous prime is 201985792403. The next prime is 201985792493. The reversal of 201985792441 is 144297589102.

It is an a-pointer prime, because the next prime (201985792493) can be obtained adding 201985792441 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110436582400 + 91549210041 = 332320^2 + 302571^2 .

It is a cyclic number.

It is not a de Polignac number, because 201985792441 - 2⁹ = 201985791929 is a prime.

It is not a weakly prime, because it can be changed into another prime (201985792741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100992896220 + 100992896221.

It is an arithmetic number, because the mean of its divisors is an integer number (100992896221).

Almost surely, 2^201985792441 is an apocalyptic number.

It is an amenable number.

201985792441 is a deficient number, since it is larger than the sum of its proper divisors (1).

201985792441 is an equidigital number, since it uses as much as digits as its factorization.

201985792441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 201985792441 in words is "two hundred one billion, nine hundred eighty-five million, seven hundred ninety-two thousand, four hundred forty-one".