6938851680 has 144 divisors (see below), whose sum is σ = 24925183920. Its totient is φ = 1752966144.

The previous prime is 6938851651. The next prime is 6938851691. The reversal of 6938851680 is 861588396.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99447 + ... + 154166.

It is an arithmetic number, because the mean of its divisors is an integer number (173091555).

Almost surely, 2^6938851680 is an apocalyptic number.

6938851680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6938851680 is an abundant number, since it is smaller than the sum of its proper divisors (17986332240).

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

6938851680 is a wasteful number, since it uses less digits than its factorization.

6938851680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253653 (or 253642 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 6938851680 is about 83299.7699876776. The cubic root of 6938851680 is about 1907.3447639982.

The spelling of 6938851680 in words is "six billion, nine hundred thirty-eight million, eight hundred fifty-one thousand, six hundred eighty".