1146355781993 has 2 divisors, whose sum is σ = 1146355781994. Its totient is φ = 1146355781992.

The previous prime is 1146355781971. The next prime is 1146355782023. The reversal of 1146355781993 is 3991875536411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 650777797264 + 495577984729 = 806708^2 + 703973^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146355781993 - 2²⁰ = 1146354733417 is a prime.

It is not a weakly prime, because it can be changed into another prime (1146355781933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573177890996 + 573177890997.

It is an arithmetic number, because the mean of its divisors is an integer number (573177890997).

Almost surely, 2^{1146355781993} is an apocalyptic number.

It is an amenable number.

1146355781993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146355781993 is an equidigital number, since it uses as much as digits as its factorization.

1146355781993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24494400, while the sum is 62.

The spelling of 1146355781993 in words is "one trillion, one hundred forty-six billion, three hundred fifty-five million, seven hundred eighty-one thousand, nine hundred ninety-three".