40871304805 has 4 divisors (see below), whose sum is σ = 49045565772. Its totient is φ = 32697043840.

The previous prime is 40871304787. The next prime is 40871304809. The reversal of 40871304805 is 50840317804.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12425783841 + 28445520964 = 111471^2 + 168658^2 .

It is not a de Polignac number, because 40871304805 - 2¹⁵ = 40871272037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40871304809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4087130476 + ... + 4087130485.

It is an arithmetic number, because the mean of its divisors is an integer number (12261391443).

Almost surely, 2^40871304805 is an apocalyptic number.

It is an amenable number.

40871304805 is a deficient number, since it is larger than the sum of its proper divisors (8174260967).

40871304805 is an equidigital number, since it uses as much as digits as its factorization.

40871304805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8174260966.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 40871304805 in words is "forty billion, eight hundred seventy-one million, three hundred four thousand, eight hundred five".