3813773840447 has 2 divisors, whose sum is σ = 3813773840448. Its totient is φ = 3813773840446.

The previous prime is 3813773840419. The next prime is 3813773840467. The reversal of 3813773840447 is 7440483773183.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3813773840447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3813773840467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1906886920223 + 1906886920224.

It is an arithmetic number, because the mean of its divisors is an integer number (1906886920224).

Almost surely, 2^{3813773840447} is an apocalyptic number.

3813773840447 is a deficient number, since it is larger than the sum of its proper divisors (1).

3813773840447 is an equidigital number, since it uses as much as digits as its factorization.

3813773840447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37933056, while the sum is 59.

The spelling of 3813773840447 in words is "three trillion, eight hundred thirteen billion, seven hundred seventy-three million, eight hundred forty thousand, four hundred forty-seven".