2656768684741 has 2 divisors, whose sum is σ = 2656768684742. Its totient is φ = 2656768684740.

The previous prime is 2656768684723. The next prime is 2656768684777. The reversal of 2656768684741 is 1474868676562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1724877715716 + 931890969025 = 1313346^2 + 965345^2 .

It is a cyclic number.

It is not a de Polignac number, because 2656768684741 - 2⁵ = 2656768684709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2656768684721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328384342370 + 1328384342371.

It is an arithmetic number, because the mean of its divisors is an integer number (1328384342371).

Almost surely, 2^{2656768684741} is an apocalyptic number.

It is an amenable number.

2656768684741 is a deficient number, since it is larger than the sum of its proper divisors (1).

2656768684741 is an equidigital number, since it uses as much as digits as its factorization.

2656768684741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 650280960, while the sum is 70.

The spelling of 2656768684741 in words is "two trillion, six hundred fifty-six billion, seven hundred sixty-eight million, six hundred eighty-four thousand, seven hundred forty-one".