1895181835213 has 2 divisors, whose sum is σ = 1895181835214. Its totient is φ = 1895181835212.

The previous prime is 1895181835199. The next prime is 1895181835223. The reversal of 1895181835213 is 3125381815981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1642708749124 + 252473086089 = 1281682^2 + 502467^2 .

It is a cyclic number.

It is not a de Polignac number, because 1895181835213 - 2²¹ = 1895179738061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1895181835223) 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, 947590917606 + 947590917607.

It is an arithmetic number, because the mean of its divisors is an integer number (947590917607).

Almost surely, 2^{1895181835213} is an apocalyptic number.

It is an amenable number.

1895181835213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1895181835213 is an equidigital number, since it uses as much as digits as its factorization.

1895181835213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2073600, while the sum is 55.

The spelling of 1895181835213 in words is "one trillion, eight hundred ninety-five billion, one hundred eighty-one million, eight hundred thirty-five thousand, two hundred thirteen".