2645824500 has 240 divisors, whose sum is σ = 9418368960. Its totient is φ = 641304000.

The previous prime is 2645824463. The next prime is 2645824513. The reversal of 2645824500 is 54285462.

It is a happy number.

2645824500 is a `hidden beast` number, since 2 + 645 + 8 + 2 + 4 + 5 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 442531 + ... + 448469.

It is an arithmetic number, because the mean of its divisors is an integer number (39243204).

Almost surely, 2^2645824500 is an apocalyptic number.

2645824500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2645824500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4709184480).

2645824500 is an abundant number, since it is smaller than the sum of its proper divisors (6772544460).

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

2645824500 is a wasteful number, since it uses less digits than its factorization.

2645824500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5981 (or 5960 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 2645824500 is about 51437.5786755170. The cubic root of 2645824500 is about 1383.1003075170.

The spelling of 2645824500 in words is "two billion, six hundred forty-five million, eight hundred twenty-four thousand, five hundred".