6726754499561 has 16 divisors (see below), whose sum is σ = 7197581760000. Its totient is φ = 6272691667200.

The previous prime is 6726754499537. The next prime is 6726754499587. The reversal of 6726754499561 is 1659944576276.

It is a cyclic number.

It is not a de Polignac number, because 6726754499561 - 2⁶ = 6726754499497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6726754499461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7048880 + ... + 7946081.

It is an arithmetic number, because the mean of its divisors is an integer number (449848860000).

Almost surely, 2^{6726754499561} is an apocalyptic number.

It is an amenable number.

6726754499561 is a deficient number, since it is larger than the sum of its proper divisors (470827260439).

6726754499561 is a wasteful number, since it uses less digits than its factorization.

6726754499561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14995520.

The product of its digits is 685843200, while the sum is 71.

The spelling of 6726754499561 in words is "six trillion, seven hundred twenty-six billion, seven hundred fifty-four million, four hundred ninety-nine thousand, five hundred sixty-one".