8381740680727 has 4 divisors (see below), whose sum is σ = 8381749639896. Its totient is φ = 8381731721560.

The previous prime is 8381740680487. The next prime is 8381740680767. The reversal of 8381740680727 is 7270860471838.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8381740680727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8381740680767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2887693 + ... + 5010214.

It is an arithmetic number, because the mean of its divisors is an integer number (2095437409974).

Almost surely, 2^{8381740680727} is an apocalyptic number.

8381740680727 is a deficient number, since it is larger than the sum of its proper divisors (8959169).

8381740680727 is a wasteful number, since it uses less digits than its factorization.

8381740680727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8959168.

The product of its (nonzero) digits is 25288704, while the sum is 61.

The spelling of 8381740680727 in words is "eight trillion, three hundred eighty-one billion, seven hundred forty million, six hundred eighty thousand, seven hundred twenty-seven".