41785601213 has 2 divisors, whose sum is σ = 41785601214. Its totient is φ = 41785601212.

The previous prime is 41785601177. The next prime is 41785601239. The reversal of 41785601213 is 31210658714.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34671184804 + 7114416409 = 186202^2 + 84347^2 .

It is a cyclic number.

It is not a de Polignac number, because 41785601213 - 2¹⁶ = 41785535677 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41785601243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20892800606 + 20892800607.

It is an arithmetic number, because the mean of its divisors is an integer number (20892800607).

Almost surely, 2^41785601213 is an apocalyptic number.

It is an amenable number.

41785601213 is a deficient number, since it is larger than the sum of its proper divisors (1).

41785601213 is an equidigital number, since it uses as much as digits as its factorization.

41785601213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 41785601213 in words is "forty-one billion, seven hundred eighty-five million, six hundred one thousand, two hundred thirteen".