8483128693 has 4 divisors (see below), whose sum is σ = 9135677068. Its totient is φ = 7830580320.

The previous prime is 8483128669. The next prime is 8483128723. The reversal of 8483128693 is 3968213848.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4891883364 + 3591245329 = 69942^2 + 59927^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8483128693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8483128693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8483128603) 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, 326274168 + ... + 326274193.

It is an arithmetic number, because the mean of its divisors is an integer number (2283919267).

Almost surely, 2^8483128693 is an apocalyptic number.

It is an amenable number.

8483128693 is a deficient number, since it is larger than the sum of its proper divisors (652548375).

8483128693 is a wasteful number, since it uses less digits than its factorization.

8483128693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652548374.

The product of its digits is 1990656, while the sum is 52.

The square root of 8483128693 is about 92103.9016165982. The cubic root of 8483128693 is about 2039.4764045345.

The spelling of 8483128693 in words is "eight billion, four hundred eighty-three million, one hundred twenty-eight thousand, six hundred ninety-three".