5645676361 has 6 divisors (see below), whose sum is σ = 6113365710. Its totient is φ = 5211393408.

The previous prime is 5645676349. The next prime is 5645676419. The reversal of 5645676361 is 1636765465.

It can be written as a sum of positive squares in 3 ways, for example, as 101384761 + 5544291600 = 10069^2 + 74460^2 .

It is not a de Polignac number, because 5645676361 - 2⁷ = 5645676233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5645676061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16703016 + ... + 16703353.

It is an arithmetic number, because the mean of its divisors is an integer number (1018894285).

Almost surely, 2^5645676361 is an apocalyptic number.

It is an amenable number.

5645676361 is a deficient number, since it is larger than the sum of its proper divisors (467689349).

5645676361 is a wasteful number, since it uses less digits than its factorization.

5645676361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33406395 (or 33406382 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 49.

The square root of 5645676361 is about 75137.7159687463. The cubic root of 5645676361 is about 1780.6230576701.

The spelling of 5645676361 in words is "five billion, six hundred forty-five million, six hundred seventy-six thousand, three hundred sixty-one".