8257208811 has 4 divisors (see below), whose sum is σ = 11009611752. Its totient is φ = 5504805872.

The previous prime is 8257208809. The next prime is 8257208821. The reversal of 8257208811 is 1188027528.

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

It is a cyclic number.

It is not a de Polignac number, because 8257208811 - 2¹ = 8257208809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8257208821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1376201466 + ... + 1376201471.

It is an arithmetic number, because the mean of its divisors is an integer number (2752402938).

Almost surely, 2^8257208811 is an apocalyptic number.

8257208811 is a deficient number, since it is larger than the sum of its proper divisors (2752402941).

8257208811 is a wasteful number, since it uses less digits than its factorization.

8257208811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752402940.

The product of its (nonzero) digits is 71680, while the sum is 42.

The square root of 8257208811 is about 90869.1851564654. The cubic root of 8257208811 is about 2021.2083750452.

The spelling of 8257208811 in words is "eight billion, two hundred fifty-seven million, two hundred eight thousand, eight hundred eleven".