40384416773 has 2 divisors, whose sum is σ = 40384416774. Its totient is φ = 40384416772.

The previous prime is 40384416739. The next prime is 40384416803. The reversal of 40384416773 is 37761448304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20712390724 + 19672026049 = 143918^2 + 140257^2 .

It is a cyclic number.

It is not a de Polignac number, because 40384416773 - 2²⁰ = 40383368197 is a prime.

It is a super-2 number, since 2×40384416773² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40384416703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20192208386 + 20192208387.

It is an arithmetic number, because the mean of its divisors is an integer number (20192208387).

Almost surely, 2^40384416773 is an apocalyptic number.

It is an amenable number.

40384416773 is a deficient number, since it is larger than the sum of its proper divisors (1).

40384416773 is an equidigital number, since it uses as much as digits as its factorization.

40384416773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 40384416773 in words is "forty billion, three hundred eighty-four million, four hundred sixteen thousand, seven hundred seventy-three".