8173971380884 has 6 divisors (see below), whose sum is σ = 14304449916554. Its totient is φ = 4086985690440.

The previous prime is 8173971380857. The next prime is 8173971380891. The reversal of 8173971380884 is 4880831793718.

It can be written as a sum of positive squares in only one way, i.e., 5268071571984 + 2905899808900 = 2295228^2 + 1704670^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021746422607 + ... + 1021746422614.

Almost surely, 2^{8173971380884} is an apocalyptic number.

It is an amenable number.

8173971380884 is a deficient number, since it is larger than the sum of its proper divisors (6130478535670).

8173971380884 is a wasteful number, since it uses less digits than its factorization.

8173971380884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043492845225 (or 2043492845223 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 67.

The spelling of 8173971380884 in words is "eight trillion, one hundred seventy-three billion, nine hundred seventy-one million, three hundred eighty thousand, eight hundred eighty-four".