34220621569 has 2 divisors, whose sum is σ = 34220621570. Its totient is φ = 34220621568.

The previous prime is 34220621521. The next prime is 34220621573. The reversal of 34220621569 is 96512602243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18006419344 + 16214202225 = 134188^2 + 127335^2 .

It is a cyclic number.

It is not a de Polignac number, because 34220621569 - 2¹⁹ = 34220097281 is a prime.

It is a super-2 number, since 2×34220621569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (34220621509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17110310784 + 17110310785.

It is an arithmetic number, because the mean of its divisors is an integer number (17110310785).

Almost surely, 2^34220621569 is an apocalyptic number.

It is an amenable number.

34220621569 is a deficient number, since it is larger than the sum of its proper divisors (1).

34220621569 is an equidigital number, since it uses as much as digits as its factorization.

34220621569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 34220621569 in words is "thirty-four billion, two hundred twenty million, six hundred twenty-one thousand, five hundred sixty-nine".