8005179821396 has 12 divisors (see below), whose sum is σ = 14070239644020. Its totient is φ = 3985111351680.

The previous prime is 8005179821311. The next prime is 8005179821411. The reversal of 8005179821396 is 6931289715008.

It can be written as a sum of positive squares in 2 ways, for example, as 7862079523600 + 143100297796 = 2803940^2 + 378286^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4369638725 + ... + 4369640556.

It is an arithmetic number, because the mean of its divisors is an integer number (1172519970335).

Almost surely, 2^{8005179821396} is an apocalyptic number.

It is an amenable number.

8005179821396 is a deficient number, since it is larger than the sum of its proper divisors (6065059822624).

8005179821396 is a wasteful number, since it uses less digits than its factorization.

8005179821396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8739279514 (or 8739279512 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 59.

The spelling of 8005179821396 in words is "eight trillion, five billion, one hundred seventy-nine million, eight hundred twenty-one thousand, three hundred ninety-six".