8545019811 has 4 divisors (see below), whose sum is σ = 11393359752. Its totient is φ = 5696679872.

The previous prime is 8545019807. The next prime is 8545019843. The reversal of 8545019811 is 1189105458.

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

It is a cyclic number.

It is not a de Polignac number, because 8545019811 - 2² = 8545019807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8545019411) 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, 1424169966 + ... + 1424169971.

It is an arithmetic number, because the mean of its divisors is an integer number (2848339938).

Almost surely, 2^8545019811 is an apocalyptic number.

8545019811 is a deficient number, since it is larger than the sum of its proper divisors (2848339941).

8545019811 is a wasteful number, since it uses less digits than its factorization.

8545019811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848339940.

The product of its (nonzero) digits is 57600, while the sum is 42.

The square root of 8545019811 is about 92439.2763439870. The cubic root of 8545019811 is about 2044.4242544017.

The spelling of 8545019811 in words is "eight billion, five hundred forty-five million, nineteen thousand, eight hundred eleven".