3656847404741 has 2 divisors, whose sum is σ = 3656847404742. Its totient is φ = 3656847404740.

The previous prime is 3656847404723. The next prime is 3656847404789. The reversal of 3656847404741 is 1474047486563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2095172295841 + 1561675108900 = 1447471^2 + 1249670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3656847404741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3656847404711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1828423702370 + 1828423702371.

It is an arithmetic number, because the mean of its divisors is an integer number (1828423702371).

Almost surely, 2^{3656847404741} is an apocalyptic number.

It is an amenable number.

3656847404741 is a deficient number, since it is larger than the sum of its proper divisors (1).

3656847404741 is an equidigital number, since it uses as much as digits as its factorization.

3656847404741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54190080, while the sum is 59.

The spelling of 3656847404741 in words is "three trillion, six hundred fifty-six billion, eight hundred forty-seven million, four hundred four thousand, seven hundred forty-one".