5645688784 has 40 divisors (see below), whose sum is σ = 11237843232. Its totient is φ = 2746128000.

The previous prime is 5645688781. The next prime is 5645688793. The reversal of 5645688784 is 4878865465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645688781) 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, 156342 + ... + 189034.

Almost surely, 2^5645688784 is an apocalyptic number.

It is an amenable number.

5645688784 is a deficient number, since it is larger than the sum of its proper divisors (5592154448).

5645688784 is a wasteful number, since it uses less digits than its factorization.

5645688784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32995 (or 32989 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 61.

The square root of 5645688784 is about 75137.7986369044. The cubic root of 5645688784 is about 1780.6243637234.

The spelling of 5645688784 in words is "five billion, six hundred forty-five million, six hundred eighty-eight thousand, seven hundred eighty-four".