8557880913 has 12 divisors (see below), whose sum is σ = 12388203828. Its totient is φ = 5692875360.

The previous prime is 8557880909. The next prime is 8557880927. The reversal of 8557880913 is 3190887558.

8557880913 is a `hidden beast` number, since 8 + 557 + 8 + 80 + 9 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1167383889 + 7390497024 = 34167^2 + 85968^2 .

It is not a de Polignac number, because 8557880913 - 2² = 8557880909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8557880913.

It is not an unprimeable number, because it can be changed into a prime (8557880983) 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 11 ways as a sum of consecutive naturals, for example, 1027170 + ... + 1035467.

It is an arithmetic number, because the mean of its divisors is an integer number (1032350319).

Almost surely, 2^8557880913 is an apocalyptic number.

It is an amenable number.

8557880913 is a deficient number, since it is larger than the sum of its proper divisors (3830322915).

8557880913 is a wasteful number, since it uses less digits than its factorization.

8557880913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063104 (or 2063101 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The square root of 8557880913 is about 92508.8153258921. The cubic root of 8557880913 is about 2045.4494273095.

The spelling of 8557880913 in words is "eight billion, five hundred fifty-seven million, eight hundred eighty thousand, nine hundred thirteen".