13563630433 has 2 divisors, whose sum is σ = 13563630434. Its totient is φ = 13563630432.

The previous prime is 13563630359. The next prime is 13563630467. The reversal of 13563630433 is 33403636531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13563630369 + 64 = 116463^2 + 8^2 .

It is an emirp because it is prime and its reverse (33403636531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13563630433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13563630392 and 13563630401.

It is not a weakly prime, because it can be changed into another prime (13563630133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6781815216 + 6781815217.

It is an arithmetic number, because the mean of its divisors is an integer number (6781815217).

Almost surely, 2^13563630433 is an apocalyptic number.

It is an amenable number.

13563630433 is a deficient number, since it is larger than the sum of its proper divisors (1).

13563630433 is an equidigital number, since it uses as much as digits as its factorization.

13563630433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 37.

The spelling of 13563630433 in words is "thirteen billion, five hundred sixty-three million, six hundred thirty thousand, four hundred thirty-three".