13504601993 has 2 divisors, whose sum is σ = 13504601994. Its totient is φ = 13504601992.

The previous prime is 13504601987. The next prime is 13504602107. The reversal of 13504601993 is 39910640531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9080755849 + 4423846144 = 95293^2 + 66512^2 .

It is a cyclic number.

It is not a de Polignac number, because 13504601993 - 2¹⁰ = 13504600969 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13504601993.

It is not a weakly prime, because it can be changed into another prime (13504601923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6752300996 + 6752300997.

It is an arithmetic number, because the mean of its divisors is an integer number (6752300997).

Almost surely, 2^13504601993 is an apocalyptic number.

It is an amenable number.

13504601993 is a deficient number, since it is larger than the sum of its proper divisors (1).

13504601993 is an equidigital number, since it uses as much as digits as its factorization.

13504601993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 41.

The spelling of 13504601993 in words is "thirteen billion, five hundred four million, six hundred one thousand, nine hundred ninety-three".