34223648621 has 2 divisors, whose sum is σ = 34223648622. Its totient is φ = 34223648620.

The previous prime is 34223648609. The next prime is 34223648671. The reversal of 34223648621 is 12684632243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33558576100 + 665072521 = 183190^2 + 25789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34223648621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34223648671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17111824310 + 17111824311.

It is an arithmetic number, because the mean of its divisors is an integer number (17111824311).

Almost surely, 2^34223648621 is an apocalyptic number.

It is an amenable number.

34223648621 is a deficient number, since it is larger than the sum of its proper divisors (1).

34223648621 is an equidigital number, since it uses as much as digits as its factorization.

34223648621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 41.

The spelling of 34223648621 in words is "thirty-four billion, two hundred twenty-three million, six hundred forty-eight thousand, six hundred twenty-one".