6724746681 has 4 divisors (see below), whose sum is σ = 8966328912. Its totient is φ = 4483164452.

The previous prime is 6724746649. The next prime is 6724746697. The reversal of 6724746681 is 1866474276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6724746681 - 2⁵ = 6724746649 is a prime.

It is a super-2 number, since 2×6724746681² = 90444435847241031522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6724746881) 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 3 ways as a sum of consecutive naturals, for example, 1120791111 + ... + 1120791116.

It is an arithmetic number, because the mean of its divisors is an integer number (2241582228).

Almost surely, 2^6724746681 is an apocalyptic number.

It is an amenable number.

6724746681 is a deficient number, since it is larger than the sum of its proper divisors (2241582231).

6724746681 is a wasteful number, since it uses less digits than its factorization.

6724746681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241582230.

The product of its digits is 2709504, while the sum is 51.

The square root of 6724746681 is about 82004.5528065363. The cubic root of 6724746681 is about 1887.5218008154.

The spelling of 6724746681 in words is "six billion, seven hundred twenty-four million, seven hundred forty-six thousand, six hundred eighty-one".