21734053624061 has 2 divisors, whose sum is σ = 21734053624062. Its totient is φ = 21734053624060.

The previous prime is 21734053624051. The next prime is 21734053624079. The reversal of 21734053624061 is 16042635043712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20914112508025 + 819941116036 = 4573195^2 + 905506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21734053624061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21734053624001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10867026812030 + 10867026812031.

It is an arithmetic number, because the mean of its divisors is an integer number (10867026812031).

Almost surely, 2^{21734053624061} is an apocalyptic number.

It is an amenable number.

21734053624061 is a deficient number, since it is larger than the sum of its proper divisors (1).

21734053624061 is an equidigital number, since it uses as much as digits as its factorization.

21734053624061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 44.

Adding to 21734053624061 its reverse (16042635043712), we get a palindrome (37776688667773).

The spelling of 21734053624061 in words is "twenty-one trillion, seven hundred thirty-four billion, fifty-three million, six hundred twenty-four thousand, sixty-one".