81833762701 has 2 divisors, whose sum is σ = 81833762702. Its totient is φ = 81833762700.

The previous prime is 81833762687. The next prime is 81833762711. The reversal of 81833762701 is 10726733818.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44314460100 + 37519302601 = 210510^2 + 193699^2 .

It is a cyclic number.

It is not a de Polignac number, because 81833762701 - 2¹¹ = 81833760653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (81833762711) 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, 40916881350 + 40916881351.

It is an arithmetic number, because the mean of its divisors is an integer number (40916881351).

Almost surely, 2^81833762701 is an apocalyptic number.

It is an amenable number.

81833762701 is a deficient number, since it is larger than the sum of its proper divisors (1).

81833762701 is an equidigital number, since it uses as much as digits as its factorization.

81833762701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 81833762701 in words is "eighty-one billion, eight hundred thirty-three million, seven hundred sixty-two thousand, seven hundred one".