13645744223 has 2 divisors, whose sum is σ = 13645744224. Its totient is φ = 13645744222.

The previous prime is 13645744213. The next prime is 13645744243. The reversal of 13645744223 is 32244754631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13645744223 - 2¹⁶ = 13645678687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13645744213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6822872111 + 6822872112.

It is an arithmetic number, because the mean of its divisors is an integer number (6822872112).

Almost surely, 2^13645744223 is an apocalyptic number.

13645744223 is a deficient number, since it is larger than the sum of its proper divisors (1).

13645744223 is an equidigital number, since it uses as much as digits as its factorization.

13645744223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 41.

The spelling of 13645744223 in words is "thirteen billion, six hundred forty-five million, seven hundred forty-four thousand, two hundred twenty-three".