6723646761 has 64 divisors (see below), whose sum is σ = 10599192576. Its totient is φ = 3751833600.

The previous prime is 6723646757. The next prime is 6723646789. The reversal of 6723646761 is 1676463276.

6723646761 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6723646761 - 2² = 6723646757 is a prime.

It is a super-2 number, since 2×6723646761² = 90414851533411582242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6723646761.

It is not an unprimeable number, because it can be changed into a prime (6723646751) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5692591 + ... + 5693771.

It is an arithmetic number, because the mean of its divisors is an integer number (165612384).

Almost surely, 2^6723646761 is an apocalyptic number.

It is an amenable number.

6723646761 is a deficient number, since it is larger than the sum of its proper divisors (3875545815).

6723646761 is a wasteful number, since it uses less digits than its factorization.

6723646761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522.

The product of its digits is 1524096, while the sum is 48.

The square root of 6723646761 is about 81997.8460753696. The cubic root of 6723646761 is about 1887.4188856039.

The spelling of 6723646761 in words is "six billion, seven hundred twenty-three million, six hundred forty-six thousand, seven hundred sixty-one".