8077811812 has 12 divisors (see below), whose sum is σ = 16155623680. Its totient is φ = 3461919336.

The previous prime is 8077811803. The next prime is 8077811831. The reversal of 8077811812 is 2181187708.

8077811812 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144246612 + ... + 144246667.

Almost surely, 2^8077811812 is an apocalyptic number.

It is an amenable number.

8077811812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8077811812 is a wasteful number, since it uses less digits than its factorization.

8077811812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288493290 (or 288493288 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 43.

The square root of 8077811812 is about 89876.6477568005. The cubic root of 8077811812 is about 2006.4634073483.

The spelling of 8077811812 in words is "eight billion, seventy-seven million, eight hundred eleven thousand, eight hundred twelve".