6945404208 has 80 divisors (see below), whose sum is σ = 18749561856. Its totient is φ = 2211264000.

The previous prime is 6945404201. The next prime is 6945404209. The reversal of 6945404208 is 8024045496.

It is a super-2 number, since 2×6945404208² = 96477279225008214528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6945404208.

It is not an unprimeable number, because it can be changed into a prime (6945404201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 824916 + ... + 833292.

Almost surely, 2^6945404208 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 6945404208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9374780928).

6945404208 is an abundant number, since it is smaller than the sum of its proper divisors (11804157648).

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

6945404208 is a wasteful number, since it uses less digits than its factorization.

6945404208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9162 (or 9156 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 6945404208 is about 83339.0917157129. The cubic root of 6945404208 is about 1907.9449592744.

The spelling of 6945404208 in words is "six billion, nine hundred forty-five million, four hundred four thousand, two hundred eight".