8381740680726 has 32 divisors (see below), whose sum is σ = 20166594120960. Its totient is φ = 2268741838176.

The previous prime is 8381740680487. The next prime is 8381740680767. The reversal of 8381740680726 is 6270860471838.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8381740680726.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5251716421 + ... + 5251718016.

It is an arithmetic number, because the mean of its divisors is an integer number (630206066280).

Almost surely, 2^{8381740680726} is an apocalyptic number.

8381740680726 is an abundant number, since it is smaller than the sum of its proper divisors (11784853440234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8381740680726 is a wasteful number, since it uses less digits than its factorization.

8381740680726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10503434468.

The product of its (nonzero) digits is 21676032, while the sum is 60.

The spelling of 8381740680726 in words is "eight trillion, three hundred eighty-one billion, seven hundred forty million, six hundred eighty thousand, seven hundred twenty-six".