13599128773 has 2 divisors, whose sum is σ = 13599128774. Its totient is φ = 13599128772.

The previous prime is 13599128729. The next prime is 13599128783. The reversal of 13599128773 is 37782199531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12271765284 + 1327363489 = 110778^2 + 36433^2 .

It is an emirp because it is prime and its reverse (37782199531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13599128773 - 2⁹ = 13599128261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13599128783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6799564386 + 6799564387.

It is an arithmetic number, because the mean of its divisors is an integer number (6799564387).

Almost surely, 2^13599128773 is an apocalyptic number.

It is an amenable number.

13599128773 is a deficient number, since it is larger than the sum of its proper divisors (1).

13599128773 is an equidigital number, since it uses as much as digits as its factorization.

13599128773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2857680, while the sum is 55.

It can be divided in two parts, 1359912 and 8773, that added together give a triangular number (1368685 = T₁₆₅₄).

The spelling of 13599128773 in words is "thirteen billion, five hundred ninety-nine million, one hundred twenty-eight thousand, seven hundred seventy-three".