5645347667 has 4 divisors (see below), whose sum is σ = 5688442056. Its totient is φ = 5602253280.

The previous prime is 5645347657. The next prime is 5645347711. The reversal of 5645347667 is 7667435465.

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 5645347667 - 2⁴ = 5645347651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5645347627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21546998 + ... + 21547259.

It is an arithmetic number, because the mean of its divisors is an integer number (1422110514).

Almost surely, 2^5645347667 is an apocalyptic number.

5645347667 is a deficient number, since it is larger than the sum of its proper divisors (43094389).

5645347667 is a wasteful number, since it uses less digits than its factorization.

5645347667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43094388.

The product of its digits is 12700800, while the sum is 53.

The square root of 5645347667 is about 75135.5286598823. The cubic root of 5645347667 is about 1780.5885007551.

The spelling of 5645347667 in words is "five billion, six hundred forty-five million, three hundred forty-seven thousand, six hundred sixty-seven".