8741368718021 has 2 divisors, whose sum is σ = 8741368718022. Its totient is φ = 8741368718020.

The previous prime is 8741368717981. The next prime is 8741368718041. The reversal of 8741368718021 is 1208178631478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5773380561796 + 2967988156225 = 2402786^2 + 1722785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8741368718021 is a prime.

It is a super-2 number, since 2×8741368718021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8741368718041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4370684359010 + 4370684359011.

It is an arithmetic number, because the mean of its divisors is an integer number (4370684359011).

Almost surely, 2^{8741368718021} is an apocalyptic number.

It is an amenable number.

8741368718021 is a deficient number, since it is larger than the sum of its proper divisors (1).

8741368718021 is an equidigital number, since it uses as much as digits as its factorization.

8741368718021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3612672, while the sum is 56.

The spelling of 8741368718021 in words is "eight trillion, seven hundred forty-one billion, three hundred sixty-eight million, seven hundred eighteen thousand, twenty-one".