413681818561 has 8 divisors (see below), whose sum is σ = 451383313248. Its totient is φ = 375996000000.

The previous prime is 413681818519. The next prime is 413681818601. The reversal of 413681818561 is 165818186314.

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 413681818561 - 2¹⁵ = 413681785793 is a prime.

It is a super-2 number, since 2×413681818561² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 413681818499 and 413681818508.

It is not an unprimeable number, because it can be changed into a prime (413681812561) 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, 3863815 + ... + 3969436.

It is an arithmetic number, because the mean of its divisors is an integer number (56422914156).

Almost surely, 2^413681818561 is an apocalyptic number.

It is an amenable number.

413681818561 is a deficient number, since it is larger than the sum of its proper divisors (37701494687).

413681818561 is a wasteful number, since it uses less digits than its factorization.

413681818561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7838063.

The product of its digits is 1105920, while the sum is 52.

The spelling of 413681818561 in words is "four hundred thirteen billion, six hundred eighty-one million, eight hundred eighteen thousand, five hundred sixty-one".