814447477813 has 16 divisors (see below), whose sum is σ = 858340215040. Its totient is φ = 770657976000.

The previous prime is 814447477807. The next prime is 814447477859. The reversal of 814447477813 is 318774744418.

It is a cyclic number.

It is not a de Polignac number, because 814447477813 - 2¹³ = 814447469621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814447477213) 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 15 ways as a sum of consecutive naturals, for example, 82254163 + ... + 82264063.

It is an arithmetic number, because the mean of its divisors is an integer number (53646263440).

Almost surely, 2^814447477813 is an apocalyptic number.

It is an amenable number.

814447477813 is a deficient number, since it is larger than the sum of its proper divisors (43892737227).

814447477813 is a wasteful number, since it uses less digits than its factorization.

814447477813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14668.

The product of its digits is 16859136, while the sum is 58.

The spelling of 814447477813 in words is "eight hundred fourteen billion, four hundred forty-seven million, four hundred seventy-seven thousand, eight hundred thirteen".