7721065676 has 24 divisors (see below), whose sum is σ = 14038878000. Its totient is φ = 3711121344.

The previous prime is 7721065669. The next prime is 7721065691. The reversal of 7721065676 is 6765601277.

It is a super-2 number, since 2×7721065676² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7721065676.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118766 + ... + 171893.

It is an arithmetic number, because the mean of its divisors is an integer number (584953250).

Almost surely, 2^7721065676 is an apocalyptic number.

It is an amenable number.

7721065676 is a deficient number, since it is larger than the sum of its proper divisors (6317812324).

7721065676 is a wasteful number, since it uses less digits than its factorization.

7721065676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290921 (or 290919 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 47.

The square root of 7721065676 is about 87869.5947185373. The cubic root of 7721065676 is about 1976.4799611447.

The spelling of 7721065676 in words is "seven billion, seven hundred twenty-one million, sixty-five thousand, six hundred seventy-six".