8157080811 has 24 divisors (see below), whose sum is σ = 12657958992. Its totient is φ = 4652876800.

The previous prime is 8157080807. The next prime is 8157080819. The reversal of 8157080811 is 1180807518.

8157080811 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8157080811 - 2² = 8157080807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8157080811.

It is not an unprimeable number, because it can be changed into a prime (8157080819) 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 23 ways as a sum of consecutive naturals, for example, 654750 + ... + 667091.

It is an arithmetic number, because the mean of its divisors is an integer number (527414958).

Almost surely, 2^8157080811 is an apocalyptic number.

8157080811 is a deficient number, since it is larger than the sum of its proper divisors (4500878181).

8157080811 is a wasteful number, since it uses less digits than its factorization.

8157080811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321883 (or 1321872 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 39.

The square root of 8157080811 is about 90316.5588970262. The cubic root of 8157080811 is about 2013.0053151641.

The spelling of 8157080811 in words is "eight billion, one hundred fifty-seven million, eighty thousand, eight hundred eleven".