4816400478509 has 8 divisors (see below), whose sum is σ = 4982700827160. Its totient is φ = 4650114634816.

The previous prime is 4816400478503. The next prime is 4816400478581. The reversal of 4816400478509 is 9058740046184.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1867040761609 + 2949359716900 = 1366397^2 + 1717370^2 .

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 4816400478509 - 2²⁴ = 4816383701293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4816400478503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2948522 + ... + 4280955.

It is an arithmetic number, because the mean of its divisors is an integer number (622837603395).

Almost surely, 2^{4816400478509} is an apocalyptic number.

It is an amenable number.

4816400478509 is a deficient number, since it is larger than the sum of its proper divisors (166300348651).

4816400478509 is a wasteful number, since it uses less digits than its factorization.

4816400478509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7252479.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 4816400478509 in words is "four trillion, eight hundred sixteen billion, four hundred million, four hundred seventy-eight thousand, five hundred nine".