8141990068 has 12 divisors (see below), whose sum is σ = 14252207620. Its totient is φ = 4069930752.

The previous prime is 8141989981. The next prime is 8141990093. The reversal of 8141990068 is 8600991418.

It can be written as a sum of positive squares in 2 ways, for example, as 4018038544 + 4123951524 = 63388^2 + 64218^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248733 + ... + 279556.

Almost surely, 2^8141990068 is an apocalyptic number.

It is an amenable number.

8141990068 is a deficient number, since it is larger than the sum of its proper divisors (6110217552).

8141990068 is a wasteful number, since it uses less digits than its factorization.

8141990068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532146 (or 532144 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 8141990068 is about 90232.9766105496. The cubic root of 8141990068 is about 2011.7631837786.

The spelling of 8141990068 in words is "eight billion, one hundred forty-one million, nine hundred ninety thousand, sixty-eight".