6978134286017 has 2 divisors, whose sum is σ = 6978134286018. Its totient is φ = 6978134286016.

The previous prime is 6978134285977. The next prime is 6978134286029. The reversal of 6978134286017 is 7106824318796.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5523985299856 + 1454148986161 = 2350316^2 + 1205881^2 .

It is a cyclic number.

It is not a de Polignac number, because 6978134286017 - 2²⁴ = 6978117508801 is a prime.

It is a super-2 number, since 2×6978134286017² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6978134286317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3489067143008 + 3489067143009.

It is an arithmetic number, because the mean of its divisors is an integer number (3489067143009).

Almost surely, 2^{6978134286017} is an apocalyptic number.

It is an amenable number.

6978134286017 is a deficient number, since it is larger than the sum of its proper divisors (1).

6978134286017 is an equidigital number, since it uses as much as digits as its factorization.

6978134286017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24385536, while the sum is 62.

The spelling of 6978134286017 in words is "six trillion, nine hundred seventy-eight billion, one hundred thirty-four million, two hundred eighty-six thousand, seventeen".