8106740042 has 12 divisors (see below), whose sum is σ = 12279347730. Its totient is φ = 4014006408.

The previous prime is 8106740041. The next prime is 8106740137. The reversal of 8106740042 is 2400476018.

It can be written as a sum of positive squares in only one way, i.e., 4862412361 + 3244327681 = 69731^2 + 56959^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8106739990 and 8106740008.

It is not an unprimeable number, because it can be changed into a prime (8106740041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 169817 + ... + 212252.

Almost surely, 2^8106740042 is an apocalyptic number.

8106740042 is a deficient number, since it is larger than the sum of its proper divisors (4172607688).

8106740042 is a wasteful number, since it uses less digits than its factorization.

8106740042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382277 (or 382174 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 8106740042 is about 90037.4368915508. The cubic root of 8106740042 is about 2008.8557336159.

The spelling of 8106740042 in words is "eight billion, one hundred six million, seven hundred forty thousand, forty-two".