8271394023805 has 16 divisors (see below), whose sum is σ = 11032308739584. Its totient is φ = 5902058169280.

The previous prime is 8271394023803. The next prime is 8271394023859. The reversal of 8271394023805 is 5083204931728.

It is a happy number.

It is not a de Polignac number, because 8271394023805 - 2¹ = 8271394023803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8271394023803) 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, 1418761069 + ... + 1418766898.

It is an arithmetic number, because the mean of its divisors is an integer number (689519296224).

Almost surely, 2^{8271394023805} is an apocalyptic number.

It is an amenable number.

8271394023805 is a deficient number, since it is larger than the sum of its proper divisors (2760914715779).

8271394023805 is a wasteful number, since it uses less digits than its factorization.

8271394023805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837528036.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 8271394023805 in words is "eight trillion, two hundred seventy-one billion, three hundred ninety-four million, twenty-three thousand, eight hundred five".