13386489973 has 2 divisors, whose sum is σ = 13386489974. Its totient is φ = 13386489972.

The previous prime is 13386489953. The next prime is 13386490027. The reversal of 13386489973 is 37998468331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9573056964 + 3813433009 = 97842^2 + 61753^2 .

It is an emirp because it is prime and its reverse (37998468331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13386489973 - 2⁹ = 13386489461 is a prime.

It is a super-2 number, since 2×13386489973² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13386489943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6693244986 + 6693244987.

It is an arithmetic number, because the mean of its divisors is an integer number (6693244987).

Almost surely, 2^13386489973 is an apocalyptic number.

It is an amenable number.

13386489973 is a deficient number, since it is larger than the sum of its proper divisors (1).

13386489973 is an equidigital number, since it uses as much as digits as its factorization.

13386489973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23514624, while the sum is 61.

The spelling of 13386489973 in words is "thirteen billion, three hundred eighty-six million, four hundred eighty-nine thousand, nine hundred seventy-three".