6981051740224 has 21 divisors (see below), whose sum is σ = 13853066491551. Its totient is φ = 3490515301440.

The previous prime is 6981051740197. The next prime is 6981051740227. The reversal of 6981051740224 is 4220471501896.

The square root of 6981051740224 is 2642168.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6981051740227) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20972209 + ... + 21302479.

It is an arithmetic number, because the mean of its divisors is an integer number (659669832931).

Almost surely, 2^{6981051740224} is an apocalyptic number.

6981051740224 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

6981051740224 is the 2642168-th square number.

It is an amenable number.

6981051740224 is a deficient number, since it is larger than the sum of its proper divisors (6872014751327).

6981051740224 is an frugal number, since it uses more digits than its factorization.

6981051740224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660554 (or 330273 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

Multiplying 6981051740224 by its sum of digits (49), we get a square (342071535270976 = 18495176²).

The spelling of 6981051740224 in words is "six trillion, nine hundred eighty-one billion, fifty-one million, seven hundred forty thousand, two hundred twenty-four".