8979973632013 has 2 divisors, whose sum is σ = 8979973632014. Its totient is φ = 8979973632012.

The previous prime is 8979973631987. The next prime is 8979973632023. The reversal of 8979973632013 is 3102363799798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8302713762249 + 677259869764 = 2881443^2 + 822958^2 .

It is a cyclic number.

It is not a de Polignac number, because 8979973632013 - 2²¹ = 8979971534861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8979973632013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8979973632023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4489986816006 + 4489986816007.

It is an arithmetic number, because the mean of its divisors is an integer number (4489986816007).

Almost surely, 2^{8979973632013} is an apocalyptic number.

It is an amenable number.

8979973632013 is a deficient number, since it is larger than the sum of its proper divisors (1).

8979973632013 is an equidigital number, since it uses as much as digits as its factorization.

8979973632013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92588832, while the sum is 67.

The spelling of 8979973632013 in words is "eight trillion, nine hundred seventy-nine billion, nine hundred seventy-three million, six hundred thirty-two thousand, thirteen".