40800773009 has 2 divisors, whose sum is σ = 40800773010. Its totient is φ = 40800773008.

The previous prime is 40800772979. The next prime is 40800773021. The reversal of 40800773009 is 90037700804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30571473409 + 10229299600 = 174847^2 + 101140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40800773009 is a prime.

It is not a weakly prime, because it can be changed into another prime (40800773059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20400386504 + 20400386505.

It is an arithmetic number, because the mean of its divisors is an integer number (20400386505).

Almost surely, 2^40800773009 is an apocalyptic number.

It is an amenable number.

40800773009 is a deficient number, since it is larger than the sum of its proper divisors (1).

40800773009 is an equidigital number, since it uses as much as digits as its factorization.

40800773009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 40800773009 in words is "forty billion, eight hundred million, seven hundred seventy-three thousand, nine".