13455405569 has 2 divisors, whose sum is σ = 13455405570. Its totient is φ = 13455405568.

The previous prime is 13455405409. The next prime is 13455405577. The reversal of 13455405569 is 96550455431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13250772544 + 204633025 = 115112^2 + 14305^2 .

It is an emirp because it is prime and its reverse (96550455431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13455405569 - 2¹² = 13455401473 is a prime.

It is a super-2 number, since 2×13455405569² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13455405869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6727702784 + 6727702785.

It is an arithmetic number, because the mean of its divisors is an integer number (6727702785).

Almost surely, 2^13455405569 is an apocalyptic number.

It is an amenable number.

13455405569 is a deficient number, since it is larger than the sum of its proper divisors (1).

13455405569 is an equidigital number, since it uses as much as digits as its factorization.

13455405569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620000, while the sum is 47.

The spelling of 13455405569 in words is "thirteen billion, four hundred fifty-five million, four hundred five thousand, five hundred sixty-nine".