40034310091 has 2 divisors, whose sum is σ = 40034310092. Its totient is φ = 40034310090.

The previous prime is 40034310077. The next prime is 40034310119. The reversal of 40034310091 is 19001343004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40034310091 is a prime.

It is not a weakly prime, because it can be changed into another prime (40034310691) 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, 20017155045 + 20017155046.

It is an arithmetic number, because the mean of its divisors is an integer number (20017155046).

Almost surely, 2^40034310091 is an apocalyptic number.

40034310091 is a deficient number, since it is larger than the sum of its proper divisors (1).

40034310091 is an equidigital number, since it uses as much as digits as its factorization.

40034310091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 40034310091 its reverse (19001343004), we get a palindrome (59035653095).

The spelling of 40034310091 in words is "forty billion, thirty-four million, three hundred ten thousand, ninety-one".