40738804217871 has 24 divisors (see below), whose sum is σ = 55089147335040. Its totient is φ = 26779120256304.

The previous prime is 40738804217849. The next prime is 40738804217873. The reversal of 40738804217871 is 17871240883704.

It is a happy number.

40738804217871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40738804217871 - 2⁹ = 40738804217359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40738804217873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12364126 + ... + 15308468.

It is an arithmetic number, because the mean of its divisors is an integer number (2295381138960).

Almost surely, 2^{40738804217871} is an apocalyptic number.

40738804217871 is a deficient number, since it is larger than the sum of its proper divisors (14350343117169).

40738804217871 is an equidigital number, since it uses as much as digits as its factorization.

40738804217871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945243 (or 2945164 counting only the distinct ones).

The product of its (nonzero) digits is 16859136, while the sum is 60.

The spelling of 40738804217871 in words is "forty trillion, seven hundred thirty-eight billion, eight hundred four million, two hundred seventeen thousand, eight hundred seventy-one".