4545241544520 has 192 divisors, whose sum is σ = 15086898777600. Its totient is φ = 1186405831680.

The previous prime is 4545241544497. The next prime is 4545241544533. The reversal of 4545241544520 is 254451425454.

4545241544520 is a `hidden beast` number, since 4 + 5 + 4 + 52 + 4 + 1 + 544 + 52 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 47 ways as a sum of consecutive naturals, for example, 4489705 + ... + 5408135.

It is an arithmetic number, because the mean of its divisors is an integer number (78577597800).

Almost surely, 2^{4545241544520} is an apocalyptic number.

4545241544520 is a gapful number since it is divisible by the number (40) 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 4545241544520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7543449388800).

4545241544520 is an abundant number, since it is smaller than the sum of its proper divisors (10541657233080).

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

4545241544520 is a wasteful number, since it uses less digits than its factorization.

4545241544520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918740 (or 918733 counting only the distinct ones).

The product of its (nonzero) digits is 2560000, while the sum is 45.

Adding to 4545241544520 its reverse (254451425454), we get a palindrome (4799692969974).

The spelling of 4545241544520 in words is "four trillion, five hundred forty-five billion, two hundred forty-one million, five hundred forty-four thousand, five hundred twenty".