8481781713 has 4 divisors (see below), whose sum is σ = 11309042288. Its totient is φ = 5654521140.

The previous prime is 8481781639. The next prime is 8481781717. The reversal of 8481781713 is 3171871848.

8481781713 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8481781713 - 2¹⁴ = 8481765329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8481781717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1413630283 + ... + 1413630288.

It is an arithmetic number, because the mean of its divisors is an integer number (2827260572).

Almost surely, 2^8481781713 is an apocalyptic number.

It is an amenable number.

8481781713 is a deficient number, since it is larger than the sum of its proper divisors (2827260575).

8481781713 is a wasteful number, since it uses less digits than its factorization.

8481781713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827260574.

The product of its digits is 301056, while the sum is 48.

The square root of 8481781713 is about 92096.5890410714. The cubic root of 8481781713 is about 2039.3684538228.

The spelling of 8481781713 in words is "eight billion, four hundred eighty-one million, seven hundred eighty-one thousand, seven hundred thirteen".