40286945819 has 2 divisors, whose sum is σ = 40286945820. Its totient is φ = 40286945818.

The previous prime is 40286945813. The next prime is 40286945879. The reversal of 40286945819 is 91854968204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40286945819 - 2⁸ = 40286945563 is a prime.

It is a super-2 number, since 2×40286945819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40286945813) 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, 20143472909 + 20143472910.

It is an arithmetic number, because the mean of its divisors is an integer number (20143472910).

Almost surely, 2^40286945819 is an apocalyptic number.

40286945819 is a deficient number, since it is larger than the sum of its proper divisors (1).

40286945819 is an equidigital number, since it uses as much as digits as its factorization.

40286945819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4976640, while the sum is 56.

The spelling of 40286945819 in words is "forty billion, two hundred eighty-six million, nine hundred forty-five thousand, eight hundred nineteen".