2680754968361 has 4 divisors (see below), whose sum is σ = 2746139235924. Its totient is φ = 2615370700800.

The previous prime is 2680754968319. The next prime is 2680754968369. The reversal of 2680754968361 is 1638694570862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 943219728025 + 1737535240336 = 971195^2 + 1318156^2 .

It is a cyclic number.

It is not a de Polignac number, because 2680754968361 - 2³⁸ = 2405877061417 is a prime.

It is a super-2 number, since 2×2680754968361² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2680754968369) 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, 32692133720 + ... + 32692133801.

It is an arithmetic number, because the mean of its divisors is an integer number (686534808981).

It is a 1-persistent number, because it is pandigital, but 2⋅2680754968361 = 5361509936722 is not.

Almost surely, 2^{2680754968361} is an apocalyptic number.

It is an amenable number.

2680754968361 is a deficient number, since it is larger than the sum of its proper divisors (65384267563).

2680754968361 is an equidigital number, since it uses as much as digits as its factorization.

2680754968361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65384267562.

The product of its (nonzero) digits is 104509440, while the sum is 65.

The spelling of 2680754968361 in words is "two trillion, six hundred eighty billion, seven hundred fifty-four million, nine hundred sixty-eight thousand, three hundred sixty-one".