8254218617 has 2 divisors, whose sum is σ = 8254218618. Its totient is φ = 8254218616.

The previous prime is 8254218601. The next prime is 8254218629. The reversal of 8254218617 is 7168124528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4970814016 + 3283404601 = 70504^2 + 57301^2 .

It is a cyclic number.

It is not a de Polignac number, because 8254218617 - 2⁴ = 8254218601 is a prime.

It is a super-3 number, since 3×8254218617³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (8254218677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4127109308 + 4127109309.

It is an arithmetic number, because the mean of its divisors is an integer number (4127109309).

Almost surely, 2^8254218617 is an apocalyptic number.

It is an amenable number.

8254218617 is a deficient number, since it is larger than the sum of its proper divisors (1).

8254218617 is an equidigital number, since it uses as much as digits as its factorization.

8254218617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 215040, while the sum is 44.

The square root of 8254218617 is about 90852.7303772429. The cubic root of 8254218617 is about 2020.9643646300.

The spelling of 8254218617 in words is "eight billion, two hundred fifty-four million, two hundred eighteen thousand, six hundred seventeen".