41613657778523 has 2 divisors, whose sum is σ = 41613657778524. Its totient is φ = 41613657778522.

The previous prime is 41613657778519. The next prime is 41613657778571. The reversal of 41613657778523 is 32587775631614.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 41613657778523 - 2² = 41613657778519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41613657778523.

It is not a weakly prime, because it can be changed into another prime (41613657768523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20806828889261 + 20806828889262.

It is an arithmetic number, because the mean of its divisors is an integer number (20806828889262).

Almost surely, 2^{41613657778523} is an apocalyptic number.

41613657778523 is a deficient number, since it is larger than the sum of its proper divisors (1).

41613657778523 is an equidigital number, since it uses as much as digits as its factorization.

41613657778523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 177811200, while the sum is 65.

The spelling of 41613657778523 in words is "forty-one trillion, six hundred thirteen billion, six hundred fifty-seven million, seven hundred seventy-eight thousand, five hundred twenty-three".