4026739091 has 2 divisors, whose sum is σ = 4026739092. Its totient is φ = 4026739090.

The previous prime is 4026739081. The next prime is 4026739111. The reversal of 4026739091 is 1909376204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4026739091 is a prime.

It is not a weakly prime, because it can be changed into another prime (4026739081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2013369545 + 2013369546.

It is an arithmetic number, because the mean of its divisors is an integer number (2013369546).

Almost surely, 2^4026739091 is an apocalyptic number.

4026739091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4026739091 is an equidigital number, since it uses as much as digits as its factorization.

4026739091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 4026739091 is about 63456.5921792212. The cubic root of 4026739091 is about 1590.9303378853.

The spelling of 4026739091 in words is "four billion, twenty-six million, seven hundred thirty-nine thousand, ninety-one".