6488495689 has 8 divisors (see below), whose sum is σ = 7398646920. Its totient is φ = 5637063936.

The previous prime is 6488495683. The next prime is 6488495731. The reversal of 6488495689 is 9865948846.

6488495689 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 484880400 + 6003615289 = 22020^2 + 77483^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6488495689 - 2¹⁵ = 6488462921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6488495683) 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, 14679634 + ... + 14680075.

It is an arithmetic number, because the mean of its divisors is an integer number (924830865).

Almost surely, 2^6488495689 is an apocalyptic number.

It is an amenable number.

6488495689 is a deficient number, since it is larger than the sum of its proper divisors (910151231).

6488495689 is a wasteful number, since it uses less digits than its factorization.

6488495689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29359739.

The product of its digits is 119439360, while the sum is 67.

The square root of 6488495689 is about 80551.1991779142. The cubic root of 6488495689 is about 1865.1539033532.

The spelling of 6488495689 in words is "six billion, four hundred eighty-eight million, four hundred ninety-five thousand, six hundred eighty-nine".