13209779983 has 2 divisors, whose sum is σ = 13209779984. Its totient is φ = 13209779982.

The previous prime is 13209779981. The next prime is 13209779987. The reversal of 13209779983 is 38997790231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13209779983 - 2¹ = 13209779981 is a prime.

Together with 13209779981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13209779981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6604889991 + 6604889992.

It is an arithmetic number, because the mean of its divisors is an integer number (6604889992).

Almost surely, 2^13209779983 is an apocalyptic number.

13209779983 is a deficient number, since it is larger than the sum of its proper divisors (1).

13209779983 is an equidigital number, since it uses as much as digits as its factorization.

13209779983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5143824, while the sum is 58.

The spelling of 13209779983 in words is "thirteen billion, two hundred nine million, seven hundred seventy-nine thousand, nine hundred eighty-three".