1941773545213 has 2 divisors, whose sum is σ = 1941773545214. Its totient is φ = 1941773545212.

The previous prime is 1941773545147. The next prime is 1941773545303. The reversal of 1941773545213 is 3125453771491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1863394263844 + 78379281369 = 1365062^2 + 279963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1941773545213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1941773525213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970886772606 + 970886772607.

It is an arithmetic number, because the mean of its divisors is an integer number (970886772607).

Almost surely, 2^{1941773545213} is an apocalyptic number.

It is an amenable number.

1941773545213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1941773545213 is an equidigital number, since it uses as much as digits as its factorization.

1941773545213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 52.

The spelling of 1941773545213 in words is "one trillion, nine hundred forty-one billion, seven hundred seventy-three million, five hundred forty-five thousand, two hundred thirteen".