34278108217 has 2 divisors, whose sum is σ = 34278108218. Its totient is φ = 34278108216.

The previous prime is 34278108119. The next prime is 34278108229. The reversal of 34278108217 is 71280187243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17652842496 + 16625265721 = 132864^2 + 128939^2 .

It is a cyclic number.

It is not a de Polignac number, because 34278108217 - 2¹⁵ = 34278075449 is a prime.

It is not a weakly prime, because it can be changed into another prime (34278108317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17139054108 + 17139054109.

It is an arithmetic number, because the mean of its divisors is an integer number (17139054109).

Almost surely, 2^34278108217 is an apocalyptic number.

It is an amenable number.

34278108217 is a deficient number, since it is larger than the sum of its proper divisors (1).

34278108217 is an equidigital number, since it uses as much as digits as its factorization.

34278108217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 34278108217 in words is "thirty-four billion, two hundred seventy-eight million, one hundred eight thousand, two hundred seventeen".