5643670745 has 16 divisors (see below), whose sum is σ = 6995054592. Its totient is φ = 4366678080.

The previous prime is 5643670741. The next prime is 5643670811. The reversal of 5643670745 is 5470763465.

It is not a de Polignac number, because 5643670745 - 2² = 5643670741 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5643670745.

It is not an unprimeable number, because it can be changed into a prime (5643670741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272579 + ... + 292551.

It is an arithmetic number, because the mean of its divisors is an integer number (437190912).

Almost surely, 2^5643670745 is an apocalyptic number.

It is an amenable number.

5643670745 is a deficient number, since it is larger than the sum of its proper divisors (1351383847).

5643670745 is a wasteful number, since it uses less digits than its factorization.

5643670745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21832.

The product of its (nonzero) digits is 2116800, while the sum is 47.

The square root of 5643670745 is about 75124.3685164807. The cubic root of 5643670745 is about 1780.4121783563.

The spelling of 5643670745 in words is "five billion, six hundred forty-three million, six hundred seventy thousand, seven hundred forty-five".