1993147065011 has 2 divisors, whose sum is σ = 1993147065012. Its totient is φ = 1993147065010.

The previous prime is 1993147064977. The next prime is 1993147065023. The reversal of 1993147065011 is 1105607413991.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1993147065011 - 2⁶ = 1993147064947 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1993147005011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996573532505 + 996573532506.

It is an arithmetic number, because the mean of its divisors is an integer number (996573532506).

Almost surely, 2^{1993147065011} is an apocalyptic number.

1993147065011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1993147065011 is an equidigital number, since it uses as much as digits as its factorization.

1993147065011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 47.

The spelling of 1993147065011 in words is "one trillion, nine hundred ninety-three billion, one hundred forty-seven million, sixty-five thousand, eleven".