5645005040 has 80 divisors (see below), whose sum is σ = 14072849280. Its totient is φ = 2098237440.

The previous prime is 5645005031. The next prime is 5645005049. The reversal of 5645005040 is 405005465.

It is an interprime number because it is at equal distance from previous prime (5645005031) and next prime (5645005049).

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 5645004994 and 5645005012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645005049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81170 + ... + 133710.

It is an arithmetic number, because the mean of its divisors is an integer number (175910616).

Almost surely, 2^5645005040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5645005040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7036424640).

5645005040 is an abundant number, since it is smaller than the sum of its proper divisors (8427844240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5645005040 is a wasteful number, since it uses less digits than its factorization.

5645005040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52650 (or 52644 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 5645005040 is about 75133.2485654653. The cubic root of 5645005040 is about 1780.5524775802.

The spelling of 5645005040 in words is "five billion, six hundred forty-five million, five thousand, forty".