8201797198884 has 27 divisors (see below), whose sum is σ = 20732364132753. Its totient is φ = 2733926671872.

The previous prime is 8201797198841. The next prime is 8201797198919. The reversal of 8201797198884 is 4888917971028.

The square root of 8201797198884 is 2863878.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7931264062500 + 270533136384 = 2816250^2 + 520128^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16944612 + ... + 17421924.

Almost surely, 2^{8201797198884} is an apocalyptic number.

8201797198884 is the 2863878-th square number.

It is an amenable number.

8201797198884 is an abundant number, since it is smaller than the sum of its proper divisors (12530566933869).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8201797198884 is an frugal number, since it uses more digits than its factorization.

8201797198884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954636 (or 477318 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 72.

The spelling of 8201797198884 in words is "eight trillion, two hundred one billion, seven hundred ninety-seven million, one hundred ninety-eight thousand, eight hundred eighty-four".