8489779713 has 12 divisors (see below), whose sum is σ = 12265269120. Its totient is φ = 5658812856.

The previous prime is 8489779699. The next prime is 8489779763. The reversal of 8489779713 is 3179779848.

It is not a de Polignac number, because 8489779713 - 2⁵ = 8489779681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8489779763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33273 + ... + 134486.

It is an arithmetic number, because the mean of its divisors is an integer number (1022105760).

Almost surely, 2^8489779713 is an apocalyptic number.

It is an amenable number.

8489779713 is a deficient number, since it is larger than the sum of its proper divisors (3775489407).

8489779713 is a wasteful number, since it uses less digits than its factorization.

8489779713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173388 (or 173385 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 63.

The square root of 8489779713 is about 92140.0006131973. Note that the first 3 decimals coincide. The cubic root of 8489779713 is about 2040.0092682682.

The spelling of 8489779713 in words is "eight billion, four hundred eighty-nine million, seven hundred seventy-nine thousand, seven hundred thirteen".