8171021043364 has 6 divisors (see below), whose sum is σ = 14299286825894. Its totient is φ = 4085510521680.

The previous prime is 8171021043359. The next prime is 8171021043397. The reversal of 8171021043364 is 4633401201718.

It can be written as a sum of positive squares in only one way, i.e., 7318150323264 + 852870720100 = 2705208^2 + 923510^2 .

It is a super-2 number, since 2×8171021043364² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021377630417 + ... + 1021377630424.

Almost surely, 2^{8171021043364} is an apocalyptic number.

It is an amenable number.

8171021043364 is a deficient number, since it is larger than the sum of its proper divisors (6128265782530).

8171021043364 is a wasteful number, since it uses less digits than its factorization.

8171021043364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042755260845 (or 2042755260843 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 8171021043364 in words is "eight trillion, one hundred seventy-one billion, twenty-one million, forty-three thousand, three hundred sixty-four".