30470346217 has 2 divisors, whose sum is σ = 30470346218. Its totient is φ = 30470346216.

The previous prime is 30470346209. The next prime is 30470346223. The reversal of 30470346217 is 71264307403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30469797136 + 549081 = 174556^2 + 741^2 .

It is a cyclic number.

It is not a de Polignac number, because 30470346217 - 2³ = 30470346209 is a prime.

It is a super-2 number, since 2×30470346217² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30470376217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15235173108 + 15235173109.

It is an arithmetic number, because the mean of its divisors is an integer number (15235173109).

Almost surely, 2^30470346217 is an apocalyptic number.

It is an amenable number.

30470346217 is a deficient number, since it is larger than the sum of its proper divisors (1).

30470346217 is an equidigital number, since it uses as much as digits as its factorization.

30470346217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 30470346217 in words is "thirty billion, four hundred seventy million, three hundred forty-six thousand, two hundred seventeen".