13557512757773 has 2 divisors, whose sum is σ = 13557512757774. Its totient is φ = 13557512757772.

The previous prime is 13557512757757. The next prime is 13557512757799. The reversal of 13557512757773 is 37775721575531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8527351946569 + 5030160811204 = 2920163^2 + 2242802^2 .

It is a cyclic number.

It is not a de Polignac number, because 13557512757773 - 2⁴ = 13557512757757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13557512757743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6778756378886 + 6778756378887.

It is an arithmetic number, because the mean of its divisors is an integer number (6778756378887).

Almost surely, 2^{13557512757773} is an apocalyptic number.

It is an amenable number.

13557512757773 is a deficient number, since it is larger than the sum of its proper divisors (1).

13557512757773 is an equidigital number, since it uses as much as digits as its factorization.

13557512757773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189078750, while the sum is 65.

The spelling of 13557512757773 in words is "thirteen trillion, five hundred fifty-seven billion, five hundred twelve million, seven hundred fifty-seven thousand, seven hundred seventy-three".