34447420081 has 2 divisors, whose sum is σ = 34447420082. Its totient is φ = 34447420080.

The previous prime is 34447420079. The next prime is 34447420123. The reversal of 34447420081 is 18002474443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34173219600 + 274200481 = 184860^2 + 16559^2 .

It is a cyclic number.

It is not a de Polignac number, because 34447420081 - 2¹ = 34447420079 is a prime.

It is a super-2 number, since 2×34447420081² (a number of 22 digits) contains 22 as substring.

Together with 34447420079, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 34447420081.

It is not a weakly prime, because it can be changed into another prime (34447427081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17223710040 + 17223710041.

It is an arithmetic number, because the mean of its divisors is an integer number (17223710041).

Almost surely, 2^34447420081 is an apocalyptic number.

It is an amenable number.

34447420081 is a deficient number, since it is larger than the sum of its proper divisors (1).

34447420081 is an equidigital number, since it uses as much as digits as its factorization.

34447420081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86016, while the sum is 37.

The spelling of 34447420081 in words is "thirty-four billion, four hundred forty-seven million, four hundred twenty thousand, eighty-one".