8509379211 has 8 divisors (see below), whose sum is σ = 12606487760. Its totient is φ = 5672919456.

The previous prime is 8509379171. The next prime is 8509379213. The reversal of 8509379211 is 1129739058.

It is not a de Polignac number, because 8509379211 - 2³¹ = 6361895563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8509379213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157581070 + ... + 157581123.

It is an arithmetic number, because the mean of its divisors is an integer number (1575810970).

Almost surely, 2^8509379211 is an apocalyptic number.

8509379211 is a deficient number, since it is larger than the sum of its proper divisors (4097108549).

8509379211 is a wasteful number, since it uses less digits than its factorization.

8509379211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315162202 (or 315162196 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 8509379211 is about 92246.2964622429. The cubic root of 8509379211 is about 2041.5779162961.

The spelling of 8509379211 in words is "eight billion, five hundred nine million, three hundred seventy-nine thousand, two hundred eleven".