4591009091 has 2 divisors, whose sum is σ = 4591009092. Its totient is φ = 4591009090.

The previous prime is 4591009063. The next prime is 4591009117. The reversal of 4591009091 is 1909001954.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4591009091 - 2¹⁸ = 4590746947 is a prime.

It is not a weakly prime, because it can be changed into another prime (4591003091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2295504545 + 2295504546.

It is an arithmetic number, because the mean of its divisors is an integer number (2295504546).

Almost surely, 2^4591009091 is an apocalyptic number.

4591009091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4591009091 is an equidigital number, since it uses as much as digits as its factorization.

4591009091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 38.

The square root of 4591009091 is about 67756.9855513068. The cubic root of 4591009091 is about 1662.0192550153.

The spelling of 4591009091 in words is "four billion, five hundred ninety-one million, nine thousand, ninety-one".