4478371811 has 2 divisors, whose sum is σ = 4478371812. Its totient is φ = 4478371810.

The previous prime is 4478371759. The next prime is 4478371831. The reversal of 4478371811 is 1181738744.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4478371811 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (4478371831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2239185905 + 2239185906.

It is an arithmetic number, because the mean of its divisors is an integer number (2239185906).

Almost surely, 2^4478371811 is an apocalyptic number.

4478371811 is a deficient number, since it is larger than the sum of its proper divisors (1).

4478371811 is an equidigital number, since it uses as much as digits as its factorization.

4478371811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 44.

The square root of 4478371811 is about 66920.6381544587. The cubic root of 4478371811 is about 1648.3143864572.

The spelling of 4478371811 in words is "four billion, four hundred seventy-eight million, three hundred seventy-one thousand, eight hundred eleven".