4531780405 has 4 divisors (see below), whose sum is σ = 5438136492. Its totient is φ = 3625424320.

The previous prime is 4531780397. The next prime is 4531780417. The reversal of 4531780405 is 5040871354.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2837799441 + 1693980964 = 53271^2 + 41158^2 .

It is not a de Polignac number, because 4531780405 - 2³ = 4531780397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453178036 + ... + 453178045.

It is an arithmetic number, because the mean of its divisors is an integer number (1359534123).

Almost surely, 2^4531780405 is an apocalyptic number.

It is an amenable number.

4531780405 is a deficient number, since it is larger than the sum of its proper divisors (906356087).

4531780405 is an equidigital number, since it uses as much as digits as its factorization.

4531780405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906356086.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 4531780405 is about 67318.4997233301. The cubic root of 4531780405 is about 1654.8410510509.

The spelling of 4531780405 in words is "four billion, five hundred thirty-one million, seven hundred eighty thousand, four hundred five".