40405860953 has 2 divisors, whose sum is σ = 40405860954. Its totient is φ = 40405860952.

The previous prime is 40405860941. The next prime is 40405860973. The reversal of 40405860953 is 35906850404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39096361984 + 1309498969 = 197728^2 + 36187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40405860953 is a prime.

It is not a weakly prime, because it can be changed into another prime (40405860973) 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, 20202930476 + 20202930477.

It is an arithmetic number, because the mean of its divisors is an integer number (20202930477).

Almost surely, 2^40405860953 is an apocalyptic number.

It is an amenable number.

40405860953 is a deficient number, since it is larger than the sum of its proper divisors (1).

40405860953 is an equidigital number, since it uses as much as digits as its factorization.

40405860953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 40405860953 in words is "forty billion, four hundred five million, eight hundred sixty thousand, nine hundred fifty-three".