8531449783 has 4 divisors (see below), whose sum is σ = 8531639368. Its totient is φ = 8531260200.

The previous prime is 8531449763. The next prime is 8531449819. The reversal of 8531449783 is 3879441358.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8531449783 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 8531449783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8531449723) 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, 15433 + ... + 131533.

It is an arithmetic number, because the mean of its divisors is an integer number (2132909842).

Almost surely, 2^8531449783 is an apocalyptic number.

8531449783 is a deficient number, since it is larger than the sum of its proper divisors (189585).

8531449783 is a wasteful number, since it uses less digits than its factorization.

8531449783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189584.

The product of its digits is 2903040, while the sum is 52.

The square root of 8531449783 is about 92365.8474924579. The cubic root of 8531449783 is about 2043.3414563205.

The spelling of 8531449783 in words is "eight billion, five hundred thirty-one million, four hundred forty-nine thousand, seven hundred eighty-three".