5645431605 has 32 divisors (see below), whose sum is σ = 9858296448. Its totient is φ = 2735942400.

The previous prime is 5645431577. The next prime is 5645431609. The reversal of 5645431605 is 5061345465.

It is not a de Polignac number, because 5645431605 - 2⁶ = 5645431541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645431609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435315 + ... + 448095.

It is an arithmetic number, because the mean of its divisors is an integer number (308071764).

Almost surely, 2^5645431605 is an apocalyptic number.

5645431605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5645431605 is a deficient number, since it is larger than the sum of its proper divisors (4212864843).

5645431605 is a wasteful number, since it uses less digits than its factorization.

5645431605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15477.

The product of its (nonzero) digits is 216000, while the sum is 39.

The square root of 5645431605 is about 75136.0872350963. The cubic root of 5645431605 is about 1780.5973256203.

The spelling of 5645431605 in words is "five billion, six hundred forty-five million, four hundred thirty-one thousand, six hundred five".