6940886652 has 144 divisors (see below), whose sum is σ = 21016638720. Its totient is φ = 1975173984.

The previous prime is 6940886621. The next prime is 6940886653. The reversal of 6940886652 is 2566880496.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6940886653) 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 47 ways as a sum of consecutive naturals, for example, 1389303 + ... + 1394289.

It is an arithmetic number, because the mean of its divisors is an integer number (145948880).

Almost surely, 2^6940886652 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 6940886652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10508319360).

6940886652 is an abundant number, since it is smaller than the sum of its proper divisors (14075752068).

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

6940886652 is a wasteful number, since it uses less digits than its factorization.

6940886652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5277 (or 5262 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The square root of 6940886652 is about 83311.9838438625. The cubic root of 6940886652 is about 1907.5312028114.

The spelling of 6940886652 in words is "six billion, nine hundred forty million, eight hundred eighty-six thousand, six hundred fifty-two".