8539149671 has 16 divisors (see below), whose sum is σ = 9905387520. Its totient is φ = 7296363360.

The previous prime is 8539149667. The next prime is 8539149677. The reversal of 8539149671 is 1769419358.

It is not a de Polignac number, because 8539149671 - 2² = 8539149667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8539149677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451361 + ... + 469898.

It is an arithmetic number, because the mean of its divisors is an integer number (619086720).

Almost surely, 2^8539149671 is an apocalyptic number.

8539149671 is a deficient number, since it is larger than the sum of its proper divisors (1366237849).

8539149671 is a wasteful number, since it uses less digits than its factorization.

8539149671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921326.

The product of its digits is 1632960, while the sum is 53.

The square root of 8539149671 is about 92407.5195587459. The cubic root of 8539149671 is about 2043.9559970224.

The spelling of 8539149671 in words is "eight billion, five hundred thirty-nine million, one hundred forty-nine thousand, six hundred seventy-one".