6997447996 has 96 divisors (see below), whose sum is σ = 16387564032. Its totient is φ = 2530621440.

The previous prime is 6997447991. The next prime is 6997448011.

6997447996 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6997447991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 373075 + ... + 391381.

It is an arithmetic number, because the mean of its divisors is an integer number (170703792).

Almost surely, 2^6997447996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6997447996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8193782016).

6997447996 is an abundant number, since it is smaller than the sum of its proper divisors (9390116036).

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

6997447996 is a wasteful number, since it uses less digits than its factorization.

6997447996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18419 (or 18417 counting only the distinct ones).

The product of its digits is 185177664, while the sum is 70.

The square root of 6997447996 is about 83650.7501221597. The cubic root of 6997447996 is about 1912.6986874673.

The spelling of 6997447996 in words is "six billion, nine hundred ninety-seven million, four hundred forty-seven thousand, nine hundred ninety-six".