4478811901 has 2 divisors, whose sum is σ = 4478811902. Its totient is φ = 4478811900.

The previous prime is 4478811871. The next prime is 4478811941. The reversal of 4478811901 is 1091188744.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2339656900 + 2139155001 = 48370^2 + 46251^2 .

It is a cyclic number.

It is not a de Polignac number, because 4478811901 - 2²⁷ = 4344594173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4478811941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2239405950 + 2239405951.

It is an arithmetic number, because the mean of its divisors is an integer number (2239405951).

Almost surely, 2^4478811901 is an apocalyptic number.

It is an amenable number.

4478811901 is a deficient number, since it is larger than the sum of its proper divisors (1).

4478811901 is an equidigital number, since it uses as much as digits as its factorization.

4478811901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 43.

The square root of 4478811901 is about 66923.9262222413. The cubic root of 4478811901 is about 1648.3683780229.

The spelling of 4478811901 in words is "four billion, four hundred seventy-eight million, eight hundred eleven thousand, nine hundred one".