4545388548 has 60 divisors (see below), whose sum is σ = 11944275420. Its totient is φ = 1507258368.

The previous prime is 4545388531. The next prime is 4545388553. The reversal of 4545388548 is 8458835454.

4545388548 is a `hidden beast` number, since 4 + 54 + 538 + 8 + 54 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 713530944 + 3831857604 = 26712^2 + 61902^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 4545388494 and 4545388503.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26188 + ... + 98876.

It is an arithmetic number, because the mean of its divisors is an integer number (199071257).

Almost surely, 2^4545388548 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 4545388548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5972137710).

4545388548 is an abundant number, since it is smaller than the sum of its proper divisors (7398886872).

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

4545388548 is a wasteful number, since it uses less digits than its factorization.

4545388548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72898 (or 72887 counting only the distinct ones).

The product of its digits is 12288000, while the sum is 54.

The square root of 4545388548 is about 67419.4967943250. The cubic root of 4545388548 is about 1656.4957951518.

The spelling of 4545388548 in words is "four billion, five hundred forty-five million, three hundred eighty-eight thousand, five hundred forty-eight".