6773811641681 has 8 divisors (see below), whose sum is σ = 7847546951424. Its totient is φ = 5726588315040.

The previous prime is 6773811641617. The next prime is 6773811641711. The reversal of 6773811641681 is 1861461183776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6773811641681 - 2⁶ = 6773811641617 is a prime.

It is a super-2 number, since 2×6773811641681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6773811641681.

It is not an unprimeable number, because it can be changed into a prime (6773811641381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6627995225 + ... + 6627996246.

It is an arithmetic number, because the mean of its divisors is an integer number (980943368928).

Almost surely, 2^{6773811641681} is an apocalyptic number.

It is an amenable number.

6773811641681 is a deficient number, since it is larger than the sum of its proper divisors (1073735309743).

6773811641681 is a wasteful number, since it uses less digits than its factorization.

6773811641681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13255991551.

The product of its digits is 8128512, while the sum is 59.

The spelling of 6773811641681 in words is "six trillion, seven hundred seventy-three billion, eight hundred eleven million, six hundred forty-one thousand, six hundred eighty-one".