6945220746 has 80 divisors (see below), whose sum is σ = 16414976160. Its totient is φ = 2188749600.

The previous prime is 6945220741. The next prime is 6945220757. The reversal of 6945220746 is 6470225496.

It is not an unprimeable number, because it can be changed into a prime (6945220741) 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 39 ways as a sum of consecutive naturals, for example, 1712421 + ... + 1716471.

It is an arithmetic number, because the mean of its divisors is an integer number (205187202).

Almost surely, 2^6945220746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6945220746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8207488080).

6945220746 is an abundant number, since it is smaller than the sum of its proper divisors (9469755414).

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

6945220746 is a wasteful number, since it uses less digits than its factorization.

6945220746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641 (or 4632 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 6945220746 is about 83337.9910125028. The cubic root of 6945220746 is about 1907.9281597491.

The spelling of 6945220746 in words is "six billion, nine hundred forty-five million, two hundred twenty thousand, seven hundred forty-six".