5645506878227 has 4 divisors (see below), whose sum is σ = 5654047736496. Its totient is φ = 5636966019960.

The previous prime is 5645506878203. The next prime is 5645506878247. The reversal of 5645506878227 is 7228786055465.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5645506878227 - 2²⁴ = 5645490101011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5645506878247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4270428143 + ... + 4270429464.

It is an arithmetic number, because the mean of its divisors is an integer number (1413511934124).

Almost surely, 2^{5645506878227} is an apocalyptic number.

5645506878227 is a deficient number, since it is larger than the sum of its proper divisors (8540858269).

5645506878227 is an equidigital number, since it uses as much as digits as its factorization.

5645506878227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8540858268.

The product of its (nonzero) digits is 225792000, while the sum is 65.

The spelling of 5645506878227 in words is "five trillion, six hundred forty-five billion, five hundred six million, eight hundred seventy-eight thousand, two hundred twenty-seven".