8671975449 has 4 divisors (see below), whose sum is σ = 11562633936. Its totient is φ = 5781316964.

The previous prime is 8671975447. The next prime is 8671975489. The reversal of 8671975449 is 9445791768.

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 a cyclic number.

It is not a de Polignac number, because 8671975449 - 2¹ = 8671975447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8671975392 and 8671975401.

It is not an unprimeable number, because it can be changed into a prime (8671975441) 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, 1445329239 + ... + 1445329244.

It is an arithmetic number, because the mean of its divisors is an integer number (2890658484).

Almost surely, 2^8671975449 is an apocalyptic number.

It is an amenable number.

8671975449 is a deficient number, since it is larger than the sum of its proper divisors (2890658487).

8671975449 is a wasteful number, since it uses less digits than its factorization.

8671975449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890658486.

The product of its digits is 15240960, while the sum is 60.

The square root of 8671975449 is about 93123.4419950208. The cubic root of 8671975449 is about 2054.4993737911.

The spelling of 8671975449 in words is "eight billion, six hundred seventy-one million, nine hundred seventy-five thousand, four hundred forty-nine".