5645086816868 has 24 divisors (see below), whose sum is σ = 10460927119104. Its totient is φ = 2656279491200.

The previous prime is 5645086816861. The next prime is 5645086816883. The reversal of 5645086816868 is 8686186805465.

It is not an unprimeable number, because it can be changed into a prime (5645086816861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2838488 + ... + 4398543.

It is an arithmetic number, because the mean of its divisors is an integer number (435871963296).

Almost surely, 2^{5645086816868} is an apocalyptic number.

It is an amenable number.

5645086816868 is a deficient number, since it is larger than the sum of its proper divisors (4815840302236).

5645086816868 is a wasteful number, since it uses less digits than its factorization.

5645086816868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7248523 (or 7248521 counting only the distinct ones).

The product of its (nonzero) digits is 530841600, while the sum is 71.

The spelling of 5645086816868 in words is "five trillion, six hundred forty-five billion, eighty-six million, eight hundred sixteen thousand, eight hundred sixty-eight".