4044550091 has 2 divisors, whose sum is σ = 4044550092. Its totient is φ = 4044550090.

The previous prime is 4044550063. The next prime is 4044550187. The reversal of 4044550091 is 1900554404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4044550091 - 2¹⁴ = 4044533707 is a prime.

It is not a weakly prime, because it can be changed into another prime (4044553091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022275045 + 2022275046.

It is an arithmetic number, because the mean of its divisors is an integer number (2022275046).

Almost surely, 2^4044550091 is an apocalyptic number.

4044550091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4044550091 is an equidigital number, since it uses as much as digits as its factorization.

4044550091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 4044550091 is about 63596.7773633224. Note that the first 3 decimals coincide. The cubic root of 4044550091 is about 1593.2725460967.

The spelling of 4044550091 in words is "four billion, forty-four million, five hundred fifty thousand, ninety-one".