4181663041979 has 2 divisors, whose sum is σ = 4181663041980. Its totient is φ = 4181663041978.

The previous prime is 4181663041909. The next prime is 4181663041981. The reversal of 4181663041979 is 9791403661814.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4181663041979 - 2⁴⁰ = 3082151414203 is a prime.

Together with 4181663041981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4181663041909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2090831520989 + 2090831520990.

It is an arithmetic number, because the mean of its divisors is an integer number (2090831520990).

Almost surely, 2^{4181663041979} is an apocalyptic number.

4181663041979 is a deficient number, since it is larger than the sum of its proper divisors (1).

4181663041979 is an equidigital number, since it uses as much as digits as its factorization.

4181663041979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 4181663041979 in words is "four trillion, one hundred eighty-one billion, six hundred sixty-three million, forty-one thousand, nine hundred seventy-nine".