4548621493 has 8 divisors (see below), whose sum is σ = 5067430200. Its totient is φ = 4053943488.

The previous prime is 4548621463. The next prime is 4548621499. The reversal of 4548621493 is 3941268454.

It can be written as a sum of positive squares in 4 ways, for example, as 89453764 + 4459167729 = 9458^2 + 66777^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4548621493 - 2²⁵ = 4515067061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4548621499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6032278 + ... + 6033031.

It is an arithmetic number, because the mean of its divisors is an integer number (633428775).

Almost surely, 2^4548621493 is an apocalyptic number.

It is an amenable number.

4548621493 is a deficient number, since it is larger than the sum of its proper divisors (518808707).

4548621493 is a wasteful number, since it uses less digits than its factorization.

4548621493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12065351.

The product of its digits is 829440, while the sum is 46.

The square root of 4548621493 is about 67443.4688683789. The cubic root of 4548621493 is about 1656.8884341647. Note that the first 3 decimals are identical.

The spelling of 4548621493 in words is "four billion, five hundred forty-eight million, six hundred twenty-one thousand, four hundred ninety-three".