9978970592807 has 2 divisors, whose sum is σ = 9978970592808. Its totient is φ = 9978970592806.

The previous prime is 9978970592719. The next prime is 9978970592837. The reversal of 9978970592807 is 7082950798799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9978970592807 - 2²⁰ = 9978969544231 is a prime.

It is a super-3 number, since 3×9978970592807³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9978970592837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4989485296403 + 4989485296404.

It is an arithmetic number, because the mean of its divisors is an integer number (4989485296404).

Almost surely, 2^{9978970592807} is an apocalyptic number.

9978970592807 is a deficient number, since it is larger than the sum of its proper divisors (1).

9978970592807 is an equidigital number, since it uses as much as digits as its factorization.

9978970592807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440270720, while the sum is 80.

The spelling of 9978970592807 in words is "nine trillion, nine hundred seventy-eight billion, nine hundred seventy million, five hundred ninety-two thousand, eight hundred seven".