2833821995561 has 2 divisors, whose sum is σ = 2833821995562. Its totient is φ = 2833821995560.

The previous prime is 2833821995549. The next prime is 2833821995581. The reversal of 2833821995561 is 1655991283382.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2402887515625 + 430934479936 = 1550125^2 + 656456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2833821995561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2833821995494 and 2833821995503.

It is not a weakly prime, because it can be changed into another prime (2833821995581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1416910997780 + 1416910997781.

It is an arithmetic number, because the mean of its divisors is an integer number (1416910997781).

Almost surely, 2^{2833821995561} is an apocalyptic number.

It is an amenable number.

2833821995561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2833821995561 is an equidigital number, since it uses as much as digits as its factorization.

2833821995561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27993600, while the sum is 62.

The spelling of 2833821995561 in words is "two trillion, eight hundred thirty-three billion, eight hundred twenty-one million, nine hundred ninety-five thousand, five hundred sixty-one".