4545388544 has 168 divisors, whose sum is σ = 10111915260. Its totient is φ = 2039611392.

The previous prime is 4545388531. The next prime is 4545388553. The reversal of 4545388544 is 4458835454.

It can be written as a sum of positive squares in 2 ways, for example, as 4472934400 + 72454144 = 66880^2 + 8512^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4545388492 and 4545388501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85762022 + ... + 85762074.

Almost surely, 2^4545388544 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 4545388544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5055957630).

4545388544 is an abundant number, since it is smaller than the sum of its proper divisors (5566526716).

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

4545388544 is an equidigital number, since it uses as much as digits as its factorization.

4545388544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 103 counting only the distinct ones).

The product of its digits is 6144000, while the sum is 50.

The square root of 4545388544 is about 67419.4967646600. The cubic root of 4545388544 is about 1656.4957946659.

The spelling of 4545388544 in words is "four billion, five hundred forty-five million, three hundred eighty-eight thousand, five hundred forty-four".