8199077805 has 48 divisors (see below), whose sum is σ = 14429376000. Its totient is φ = 4306169088.

The previous prime is 8199077801. The next prime is 8199077947. The reversal of 8199077805 is 5087709918.

It is not a de Polignac number, because 8199077805 - 2² = 8199077801 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8199077801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1451176 + ... + 1456814.

It is an arithmetic number, because the mean of its divisors is an integer number (300612000).

Almost surely, 2^8199077805 is an apocalyptic number.

It is an amenable number.

8199077805 is a deficient number, since it is larger than the sum of its proper divisors (6230298195).

8199077805 is a wasteful number, since it uses less digits than its factorization.

8199077805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6138 (or 6135 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 54.

The square root of 8199077805 is about 90548.7592681424. The cubic root of 8199077805 is about 2016.4540775229.

The spelling of 8199077805 in words is "eight billion, one hundred ninety-nine million, seventy-seven thousand, eight hundred five".