5645722219 has 12 divisors (see below), whose sum is σ = 6159461344. Its totient is φ = 5169999744.

The previous prime is 5645722217. The next prime is 5645722241. The reversal of 5645722219 is 9122275465.

It is not a de Polignac number, because 5645722219 - 2¹ = 5645722217 is a prime.

It is a super-2 number, since 2×5645722219² = 63748358748220567922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5645722217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253299 + ... + 274684.

Almost surely, 2^5645722219 is an apocalyptic number.

5645722219 is a deficient number, since it is larger than the sum of its proper divisors (513739125).

5645722219 is a wasteful number, since it uses less digits than its factorization.

5645722219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528054 (or 528037 counting only the distinct ones).

The product of its digits is 302400, while the sum is 43.

The square root of 5645722219 is about 75138.0211277886. The cubic root of 5645722219 is about 1780.6278787984.

The spelling of 5645722219 in words is "five billion, six hundred forty-five million, seven hundred twenty-two thousand, two hundred nineteen".