7665321828 has 48 divisors (see below), whose sum is σ = 18944077824. Its totient is φ = 2404016640.

The previous prime is 7665321827. The next prime is 7665321893. The reversal of 7665321828 is 8281235667.

It is not an unprimeable number, because it can be changed into a prime (7665321827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1105693 + ... + 1112603.

It is an arithmetic number, because the mean of its divisors is an integer number (394668288).

Almost surely, 2^7665321828 is an apocalyptic number.

It is an amenable number.

7665321828 is an abundant number, since it is smaller than the sum of its proper divisors (11278755996).

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

7665321828 is a wasteful number, since it uses less digits than its factorization.

7665321828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12372 (or 12370 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 7665321828 is about 87551.8236703268. The cubic root of 7665321828 is about 1971.7119312955.

The spelling of 7665321828 in words is "seven billion, six hundred sixty-five million, three hundred twenty-one thousand, eight hundred twenty-eight".