8438818713 has 16 divisors (see below), whose sum is σ = 12122806080. Its totient is φ = 5190750144.

The previous prime is 8438818711. The next prime is 8438818723. The reversal of 8438818713 is 3178188348.

It is not a de Polignac number, because 8438818713 - 2¹ = 8438818711 is a prime.

It is a super-2 number, since 2×8438818713² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8438818711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39243 + ... + 135711.

It is an arithmetic number, because the mean of its divisors is an integer number (757675380).

Almost surely, 2^8438818713 is an apocalyptic number.

It is an amenable number.

8438818713 is a deficient number, since it is larger than the sum of its proper divisors (3683987367).

8438818713 is a wasteful number, since it uses less digits than its factorization.

8438818713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98728.

The product of its digits is 1032192, while the sum is 51.

The square root of 8438818713 is about 91863.0432382903. The cubic root of 8438818713 is about 2035.9192673004.

The spelling of 8438818713 in words is "eight billion, four hundred thirty-eight million, eight hundred eighteen thousand, seven hundred thirteen".