8113171619638 has 4 divisors (see below), whose sum is σ = 12169757429460. Its totient is φ = 4056585809818.

The previous prime is 8113171619621. The next prime is 8113171619639. The reversal of 8113171619638 is 8369161713118.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8113171619639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2028292904908 + ... + 2028292904911.

It is an arithmetic number, because the mean of its divisors is an integer number (3042439357365).

Almost surely, 2^{8113171619638} is an apocalyptic number.

8113171619638 is a deficient number, since it is larger than the sum of its proper divisors (4056585809822).

8113171619638 is a wasteful number, since it uses less digits than its factorization.

8113171619638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056585809821.

The product of its digits is 1306368, while the sum is 55.

The spelling of 8113171619638 in words is "eight trillion, one hundred thirteen billion, one hundred seventy-one million, six hundred nineteen thousand, six hundred thirty-eight".