41689779539 has 2 divisors, whose sum is σ = 41689779540. Its totient is φ = 41689779538.

The previous prime is 41689779533. The next prime is 41689779617. The reversal of 41689779539 is 93597798614.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 41689779539 - 2²⁴ = 41673002323 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (41689779533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20844889769 + 20844889770.

It is an arithmetic number, because the mean of its divisors is an integer number (20844889770).

Almost surely, 2^41689779539 is an apocalyptic number.

41689779539 is a deficient number, since it is larger than the sum of its proper divisors (1).

41689779539 is an equidigital number, since it uses as much as digits as its factorization.

41689779539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102876480, while the sum is 68.

The spelling of 41689779539 in words is "forty-one billion, six hundred eighty-nine million, seven hundred seventy-nine thousand, five hundred thirty-nine".