34515716143421 has 2 divisors, whose sum is σ = 34515716143422. Its totient is φ = 34515716143420.

The previous prime is 34515716143367. The next prime is 34515716143423. The reversal of 34515716143421 is 12434161751543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34379987268025 + 135728875396 = 5863445^2 + 368414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34515716143421 is a prime.

Together with 34515716143423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34515716143423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17257858071710 + 17257858071711.

It is an arithmetic number, because the mean of its divisors is an integer number (17257858071711).

Almost surely, 2^{34515716143421} is an apocalyptic number.

It is an amenable number.

34515716143421 is a deficient number, since it is larger than the sum of its proper divisors (1).

34515716143421 is an equidigital number, since it uses as much as digits as its factorization.

34515716143421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 47.

Adding to 34515716143421 its reverse (12434161751543), we get a palindrome (46949877894964).

The spelling of 34515716143421 in words is "thirty-four trillion, five hundred fifteen billion, seven hundred sixteen million, one hundred forty-three thousand, four hundred twenty-one".