881818089701 has 2 divisors, whose sum is σ = 881818089702. Its totient is φ = 881818089700.

The previous prime is 881818089673. The next prime is 881818089721. The reversal of 881818089701 is 107980818188.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527613376900 + 354204712801 = 726370^2 + 595151^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-881818089701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (881818089721) 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, 440909044850 + 440909044851.

It is an arithmetic number, because the mean of its divisors is an integer number (440909044851).

Almost surely, 2^881818089701 is an apocalyptic number.

It is an amenable number.

881818089701 is a deficient number, since it is larger than the sum of its proper divisors (1).

881818089701 is an equidigital number, since it uses as much as digits as its factorization.

881818089701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2064384, while the sum is 59.

The spelling of 881818089701 in words is "eight hundred eighty-one billion, eight hundred eighteen million, eighty-nine thousand, seven hundred one".