7681443842 has 8 divisors (see below), whose sum is σ = 12128595600. Its totient is φ = 3638578644.

The previous prime is 7681443751. The next prime is 7681443901. The reversal of 7681443842 is 2483441867.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101071592 + ... + 101071667.

It is an arithmetic number, because the mean of its divisors is an integer number (1516074450).

Almost surely, 2^7681443842 is an apocalyptic number.

7681443842 is a deficient number, since it is larger than the sum of its proper divisors (4447151758).

7681443842 is a wasteful number, since it uses less digits than its factorization.

7681443842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202143280.

The product of its digits is 1032192, while the sum is 47.

The square root of 7681443842 is about 87643.8465723635. The cubic root of 7681443842 is about 1973.0932913204.

The spelling of 7681443842 in words is "seven billion, six hundred eighty-one million, four hundred forty-three thousand, eight hundred forty-two".