8161887706763 has 16 divisors (see below), whose sum is σ = 9425034877440. Its totient is φ = 6923126552256.

The previous prime is 8161887706747. The next prime is 8161887706829. The reversal of 8161887706763 is 3676077881618.

It is a cyclic number.

It is not a de Polignac number, because 8161887706763 - 2⁴ = 8161887706747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8161887706693 and 8161887706702.

It is not an unprimeable number, because it can be changed into a prime (8161887706963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2937578 + ... + 4995311.

It is an arithmetic number, because the mean of its divisors is an integer number (589064679840).

Almost surely, 2^{8161887706763} is an apocalyptic number.

8161887706763 is a deficient number, since it is larger than the sum of its proper divisors (1263147170677).

8161887706763 is a wasteful number, since it uses less digits than its factorization.

8161887706763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7934426.

The product of its (nonzero) digits is 113799168, while the sum is 68.

The spelling of 8161887706763 in words is "eight trillion, one hundred sixty-one billion, eight hundred eighty-seven million, seven hundred six thousand, seven hundred sixty-three".