7668739944 has 48 divisors (see below), whose sum is σ = 20777421600. Its totient is φ = 2555272224.

The previous prime is 7668739921. The next prime is 7668739957. The reversal of 7668739944 is 4499378667.

It is a super-2 number, since 2×7668739944² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184077 + ... + 221859.

It is an arithmetic number, because the mean of its divisors is an integer number (432862950).

Almost surely, 2^7668739944 is an apocalyptic number.

It is an amenable number.

7668739944 is an abundant number, since it is smaller than the sum of its proper divisors (13108681656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7668739944 is a wasteful number, since it uses less digits than its factorization.

7668739944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40614 (or 40607 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 63.

The square root of 7668739944 is about 87571.3420246601. The cubic root of 7668739944 is about 1972.0049626356.

The spelling of 7668739944 in words is "seven billion, six hundred sixty-eight million, seven hundred thirty-nine thousand, nine hundred forty-four".