8341720845381 has 256 divisors, whose sum is σ = 16402106327040. Its totient is φ = 4056459264000.

The previous prime is 8341720845379. The next prime is 8341720845401. The reversal of 8341720845381 is 1835480271438.

8341720845381 is a `hidden beast` number, since 8 + 3 + 4 + 1 + 7 + 20 + 84 + 538 + 1 = 666.

It is not a de Polignac number, because 8341720845381 - 2¹ = 8341720845379 is a prime.

It is a super-2 number, since 2×8341720845381² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8341720840381) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 8902583145 + ... + 8902584081.

It is an arithmetic number, because the mean of its divisors is an integer number (64070727840).

Almost surely, 2^{8341720845381} is an apocalyptic number.

It is an amenable number.

8341720845381 is a deficient number, since it is larger than the sum of its proper divisors (8060385481659).

8341720845381 is a wasteful number, since it uses less digits than its factorization.

8341720845381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073 (or 2067 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 8341720845381 in words is "eight trillion, three hundred forty-one billion, seven hundred twenty million, eight hundred forty-five thousand, three hundred eighty-one".