8190781169068 has 48 divisors (see below), whose sum is σ = 15387050649600. Its totient is φ = 3801261784320.

The previous prime is 8190781169063. The next prime is 8190781169083. The reversal of 8190781169068 is 8609611870918.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8190781169063) 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, 3727053 + ... + 5502043.

It is an arithmetic number, because the mean of its divisors is an integer number (320563555200).

Almost surely, 2^{8190781169068} is an apocalyptic number.

It is an amenable number.

8190781169068 is a deficient number, since it is larger than the sum of its proper divisors (7196269480532).

8190781169068 is a wasteful number, since it uses less digits than its factorization.

8190781169068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775950 (or 1775948 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 64.

The spelling of 8190781169068 in words is "eight trillion, one hundred ninety billion, seven hundred eighty-one million, one hundred sixty-nine thousand, sixty-eight".