813440047713 has 8 divisors (see below), whose sum is σ = 1096773098400. Its totient is φ = 536200181088.

The previous prime is 813440047711. The next prime is 813440047781. The reversal of 813440047713 is 317740044318.

It is a happy number.

813440047713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 813440047713 - 2¹ = 813440047711 is a prime.

It is a super-2 number, since 2×813440047713² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (813440047711) 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, 1523295703 + ... + 1523296236.

It is an arithmetic number, because the mean of its divisors is an integer number (137096637300).

Almost surely, 2^813440047713 is an apocalyptic number.

It is an amenable number.

813440047713 is a deficient number, since it is larger than the sum of its proper divisors (283333050687).

813440047713 is a wasteful number, since it uses less digits than its factorization.

813440047713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046592031.

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 813440047713 in words is "eight hundred thirteen billion, four hundred forty million, forty-seven thousand, seven hundred thirteen".