6989628816 has 45 divisors (see below), whose sum is σ = 19564060971. Its totient is φ = 2329541856.

The previous prime is 6989628773. The next prime is 6989628827. The reversal of 6989628816 is 6188269896.

The square root of 6989628816 is 83604.

It is a perfect power (a square), and thus also a powerful number.

It is a nude number because it is divisible by every one of its digits.

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 8 ways as a sum of consecutive naturals, for example, 999765 + ... + 1006731.

Almost surely, 2^6989628816 is an apocalyptic number.

6989628816 is the 83604-th square number.

It is an amenable number.

6989628816 is an abundant number, since it is smaller than the sum of its proper divisors (12574432155).

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

6989628816 is an frugal number, since it uses more digits than its factorization.

6989628816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13948 (or 6972 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 63.

The cubic root of 6989628816 is about 1911.9859843280.

The spelling of 6989628816 in words is "six billion, nine hundred eighty-nine million, six hundred twenty-eight thousand, eight hundred sixteen".