8375561099 has 4 divisors (see below), whose sum is σ = 8377152960. Its totient is φ = 8373969240.

The previous prime is 8375561041. The next prime is 8375561101. The reversal of 8375561099 is 9901655738.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8375561099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8375561099.

It is not an unprimeable number, because it can be changed into a prime (8375561599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788012 + ... + 798569.

It is an arithmetic number, because the mean of its divisors is an integer number (2094288240).

Almost surely, 2^8375561099 is an apocalyptic number.

8375561099 is a deficient number, since it is larger than the sum of its proper divisors (1591861).

8375561099 is a wasteful number, since it uses less digits than its factorization.

8375561099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591860.

The product of its (nonzero) digits is 2041200, while the sum is 53.

The square root of 8375561099 is about 91518.0916485915. The cubic root of 8375561099 is about 2030.8194010624.

The spelling of 8375561099 in words is "eight billion, three hundred seventy-five million, five hundred sixty-one thousand, ninety-nine".