6746159491569 has 45 divisors (see below), whose sum is σ = 10159723498089. Its totient is φ = 4461082137720.

The previous prime is 6746159491501. The next prime is 6746159491609. The reversal of 6746159491569 is 9651949516476.

The square root of 6746159491569 is 2597337.

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

6746159491569 is a `hidden beast` number, since 6 + 7 + 4 + 6 + 1 + 59 + 4 + 9 + 1 + 569 = 666.

It is not a de Polignac number, because 6746159491569 - 2¹¹ = 6746159489521 is a prime.

It is a super-4 number, since 4×6746159491569⁴ (a number of 52 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 6746159491497 and 6746159491506.

It is not an unprimeable number, because it can be changed into a prime (6746159490569) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3062259222 + ... + 3062261424.

Almost surely, 2^{6746159491569} is an apocalyptic number.

6746159491569 is the 2597337-th square number.

6746159491569 is the 1298669-th centered octagonal number.

It is an amenable number.

6746159491569 is a deficient number, since it is larger than the sum of its proper divisors (3413564006520).

6746159491569 is an frugal number, since it uses more digits than its factorization.

6746159491569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4680 (or 2337 counting only the distinct ones).

The product of its digits is 440899200, while the sum is 72.

The spelling of 6746159491569 in words is "six trillion, seven hundred forty-six billion, one hundred fifty-nine million, four hundred ninety-one thousand, five hundred sixty-nine".