3785891395313 has 2 divisors, whose sum is σ = 3785891395314. Its totient is φ = 3785891395312.

The previous prime is 3785891395301. The next prime is 3785891395333. The reversal of 3785891395313 is 3135931985873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3330066573409 + 455824821904 = 1824847^2 + 675148^2 .

It is a cyclic number.

It is not a de Polignac number, because 3785891395313 - 2⁸ = 3785891395057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3785891395313.

It is not a weakly prime, because it can be changed into another prime (3785891395333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1892945697656 + 1892945697657.

It is an arithmetic number, because the mean of its divisors is an integer number (1892945697657).

Almost surely, 2^{3785891395313} is an apocalyptic number.

It is an amenable number.

3785891395313 is a deficient number, since it is larger than the sum of its proper divisors (1).

3785891395313 is an equidigital number, since it uses as much as digits as its factorization.

3785891395313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73483200, while the sum is 65.

The spelling of 3785891395313 in words is "three trillion, seven hundred eighty-five billion, eight hundred ninety-one million, three hundred ninety-five thousand, three hundred thirteen".