978566370073 has 2 divisors, whose sum is σ = 978566370074. Its totient is φ = 978566370072.

The previous prime is 978566370071. The next prime is 978566370107. The reversal of 978566370073 is 370073665879.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 546724190464 + 431842179609 = 739408^2 + 657147^2 .

It is an emirp because it is prime and its reverse (370073665879) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 978566370073 - 2¹ = 978566370071 is a prime.

Together with 978566370071, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 978566369993 and 978566370020.

It is not a weakly prime, because it can be changed into another prime (978566370071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489283185036 + 489283185037.

It is an arithmetic number, because the mean of its divisors is an integer number (489283185037).

Almost surely, 2^978566370073 is an apocalyptic number.

It is an amenable number.

978566370073 is a deficient number, since it is larger than the sum of its proper divisors (1).

978566370073 is an equidigital number, since it uses as much as digits as its factorization.

978566370073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40007520, while the sum is 61.

The spelling of 978566370073 in words is "nine hundred seventy-eight billion, five hundred sixty-six million, three hundred seventy thousand, seventy-three".