7842387968 has 24 divisors (see below), whose sum is σ = 15680950740. Its totient is φ = 3921192960.

The previous prime is 7842387961. The next prime is 7842387977. The reversal of 7842387968 is 8697832487.

It is a self number, because there is not a number n which added to its sum of digits gives 7842387968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7842387961) by changing a digit.

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 as a sum of consecutive naturals, namely, 1912598 + ... + 1916693.

Almost surely, 2^7842387968 is an apocalyptic number.

It is an amenable number.

7842387968 is a deficient number, since it is larger than the sum of its proper divisors (7838562772).

7842387968 is an equidigital number, since it uses as much as digits as its factorization.

7842387968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3829313 (or 3829293 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 62.

The square root of 7842387968 is about 88557.2581328035. The cubic root of 7842387968 is about 1986.7784519376.

The spelling of 7842387968 in words is "seven billion, eight hundred forty-two million, three hundred eighty-seven thousand, nine hundred sixty-eight".