413856515813 has 4 divisors (see below), whose sum is σ = 445691632428. Its totient is φ = 382021399200.

The previous prime is 413856515783. The next prime is 413856515833. The reversal of 413856515813 is 318515658314.

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 26472266209 + 387384249604 = 162703^2 + 622402^2 .

It is a cyclic number.

It is not a de Polignac number, because 413856515813 - 2⁶ = 413856515749 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 (413856515833) 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, 15917558288 + ... + 15917558313.

It is an arithmetic number, because the mean of its divisors is an integer number (111422908107).

Almost surely, 2^413856515813 is an apocalyptic number.

It is an amenable number.

413856515813 is a deficient number, since it is larger than the sum of its proper divisors (31835116615).

413856515813 is a wasteful number, since it uses less digits than its factorization.

413856515813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31835116614.

The product of its digits is 1728000, while the sum is 50.

The spelling of 413856515813 in words is "four hundred thirteen billion, eight hundred fifty-six million, five hundred fifteen thousand, eight hundred thirteen".