1000866793313 has 2 divisors, whose sum is σ = 1000866793314. Its totient is φ = 1000866793312.

The previous prime is 1000866793273. The next prime is 1000866793361. The reversal of 1000866793313 is 3133976680001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 753272975569 + 247593817744 = 867913^2 + 497588^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000866793313 - 2³² = 996571826017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1000866793393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500433396656 + 500433396657.

It is an arithmetic number, because the mean of its divisors is an integer number (500433396657).

Almost surely, 2^{1000866793313} is an apocalyptic number.

It is an amenable number.

1000866793313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000866793313 is an equidigital number, since it uses as much as digits as its factorization.

1000866793313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 1000866793313 in words is "one trillion, eight hundred sixty-six million, seven hundred ninety-three thousand, three hundred thirteen".