978566370071 has 2 divisors, whose sum is σ = 978566370072. Its totient is φ = 978566370070.

The previous prime is 978566370031. The next prime is 978566370073. The reversal of 978566370071 is 170073665879.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-978566370071 is a prime.

Together with 978566370073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (978566370073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489283185035 + 489283185036.

It is an arithmetic number, because the mean of its divisors is an integer number (489283185036).

Almost surely, 2^978566370071 is an apocalyptic number.

978566370071 is a deficient number, since it is larger than the sum of its proper divisors (1).

978566370071 is an equidigital number, since it uses as much as digits as its factorization.

978566370071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13335840, while the sum is 59.

The spelling of 978566370071 in words is "nine hundred seventy-eight billion, five hundred sixty-six million, three hundred seventy thousand, seventy-one".