34384748831981 has 2 divisors, whose sum is σ = 34384748831982. Its totient is φ = 34384748831980.

The previous prime is 34384748831977. The next prime is 34384748832013. The reversal of 34384748831981 is 18913884748343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29682937722025 + 4701811109956 = 5448205^2 + 2168366^2 .

It is a cyclic number.

It is not a de Polignac number, because 34384748831981 - 2² = 34384748831977 is a prime.

It is a super-2 number, since 2×34384748831981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34384748837981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17192374415990 + 17192374415991.

It is an arithmetic number, because the mean of its divisors is an integer number (17192374415991).

Almost surely, 2^{34384748831981} is an apocalyptic number.

It is an amenable number.

34384748831981 is a deficient number, since it is larger than the sum of its proper divisors (1).

34384748831981 is an equidigital number, since it uses as much as digits as its factorization.

34384748831981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 445906944, while the sum is 71.

The spelling of 34384748831981 in words is "thirty-four trillion, three hundred eighty-four billion, seven hundred forty-eight million, eight hundred thirty-one thousand, nine hundred eighty-one".