4447493811 has 20 divisors (see below), whose sum is σ = 7034600232. Its totient is φ = 2790583488.

The previous prime is 4447493803. The next prime is 4447493821. The reversal of 4447493811 is 1183947444.

4447493811 is a `hidden beast` number, since 44 + 47 + 493 + 81 + 1 = 666.

It is not a de Polignac number, because 4447493811 - 2³ = 4447493803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4447493821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1613545 + ... + 1616298.

Almost surely, 2^4447493811 is an apocalyptic number.

4447493811 is a deficient number, since it is larger than the sum of its proper divisors (2587106421).

4447493811 is a wasteful number, since it uses less digits than its factorization.

4447493811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229872 (or 3229863 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 4447493811 is about 66689.5329943163. The cubic root of 4447493811 is about 1644.5173161541.

The spelling of 4447493811 in words is "four billion, four hundred forty-seven million, four hundred ninety-three thousand, eight hundred eleven".