8142756406 has 16 divisors (see below), whose sum is σ = 12252860928. Its totient is φ = 4058488000.

The previous prime is 8142756371. The next prime is 8142756409. The reversal of 8142756406 is 6046572418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8142756409) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1057386 + ... + 1065058.

It is an arithmetic number, because the mean of its divisors is an integer number (765803808).

Almost surely, 2^8142756406 is an apocalyptic number.

8142756406 is a deficient number, since it is larger than the sum of its proper divisors (4110104522).

8142756406 is a wasteful number, since it uses less digits than its factorization.

8142756406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9287.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 8142756406 is about 90237.2229515071. Note that the first 3 decimals coincide. The cubic root of 8142756406 is about 2011.8262986598.

The spelling of 8142756406 in words is "eight billion, one hundred forty-two million, seven hundred fifty-six thousand, four hundred six".