40517935091 has 2 divisors, whose sum is σ = 40517935092. Its totient is φ = 40517935090.

The previous prime is 40517935069. The next prime is 40517935121. The reversal of 40517935091 is 19053971504.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40517935091 is a prime.

It is not a weakly prime, because it can be changed into another prime (40517935001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20258967545 + 20258967546.

It is an arithmetic number, because the mean of its divisors is an integer number (20258967546).

Almost surely, 2^40517935091 is an apocalyptic number.

40517935091 is a deficient number, since it is larger than the sum of its proper divisors (1).

40517935091 is an equidigital number, since it uses as much as digits as its factorization.

40517935091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170100, while the sum is 44.

The spelling of 40517935091 in words is "forty billion, five hundred seventeen million, nine hundred thirty-five thousand, ninety-one".