4815943409 has 4 divisors (see below), whose sum is σ = 4816190016. Its totient is φ = 4815696804.

The previous prime is 4815943399. The next prime is 4815943427. The reversal of 4815943409 is 9043495184.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4815943409 - 2⁴ = 4815943393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4815943469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91229 + ... + 133994.

It is an arithmetic number, because the mean of its divisors is an integer number (1204047504).

Almost surely, 2^4815943409 is an apocalyptic number.

It is an amenable number.

4815943409 is a deficient number, since it is larger than the sum of its proper divisors (246607).

4815943409 is a wasteful number, since it uses less digits than its factorization.

4815943409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246606.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 4815943409 is about 69396.9985590155. The cubic root of 4815943409 is about 1688.7309321149.

The spelling of 4815943409 in words is "four billion, eight hundred fifteen million, nine hundred forty-three thousand, four hundred nine".