40051247017 has 2 divisors, whose sum is σ = 40051247018. Its totient is φ = 40051247016.

The previous prime is 40051246993. The next prime is 40051247023. The reversal of 40051247017 is 71074215004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38925711616 + 1125535401 = 197296^2 + 33549^2 .

It is a cyclic number.

It is not a de Polignac number, because 40051247017 - 2²⁷ = 39917029289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40051247017.

It is not a weakly prime, because it can be changed into another prime (40051247417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20025623508 + 20025623509.

It is an arithmetic number, because the mean of its divisors is an integer number (20025623509).

Almost surely, 2^40051247017 is an apocalyptic number.

It is an amenable number.

40051247017 is a deficient number, since it is larger than the sum of its proper divisors (1).

40051247017 is an equidigital number, since it uses as much as digits as its factorization.

40051247017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 31.

The spelling of 40051247017 in words is "forty billion, fifty-one million, two hundred forty-seven thousand, seventeen".