40847085420817 has 16 divisors (see below), whose sum is σ = 44224448800000. Its totient is φ = 37503455419584.

The previous prime is 40847085420811. The next prime is 40847085420853. The reversal of 40847085420817 is 71802458074804.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40847085420817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40847085420811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5503684 + ... + 10582282.

It is an arithmetic number, because the mean of its divisors is an integer number (2764028050000).

Almost surely, 2^{40847085420817} is an apocalyptic number.

It is an amenable number.

40847085420817 is a deficient number, since it is larger than the sum of its proper divisors (3377363379183).

40847085420817 is a wasteful number, since it uses less digits than its factorization.

40847085420817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5081920.

The product of its (nonzero) digits is 16056320, while the sum is 58.

The spelling of 40847085420817 in words is "forty trillion, eight hundred forty-seven billion, eighty-five million, four hundred twenty thousand, eight hundred seventeen".