8197192729476 has 81 divisors (see below), whose sum is σ = 20781784004709. Its totient is φ = 2724363790848.

The previous prime is 8197192729471. The next prime is 8197192729483. The reversal of 8197192729476 is 6749272917918.

The square root of 8197192729476 is 2863074.

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

8197192729476 is a `hidden beast` number, since 8 + 19 + 71 + 9 + 2 + 72 + 9 + 476 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8140464922500 + 56727806976 = 2853150^2 + 238176^2 .

It is not an unprimeable number, because it can be changed into a prime (8197192729471) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 9911961775 + ... + 9911962601.

Almost surely, 2^{8197192729476} is an apocalyptic number.

8197192729476 is the 2863074-th square number.

It is an amenable number.

8197192729476 is an abundant number, since it is smaller than the sum of its proper divisors (12584591275233).

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

8197192729476 is an frugal number, since it uses more digits than its factorization.

8197192729476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818 (or 1409 counting only the distinct ones).

The product of its digits is 192036096, while the sum is 72.

The spelling of 8197192729476 in words is "eight trillion, one hundred ninety-seven billion, one hundred ninety-two million, seven hundred twenty-nine thousand, four hundred seventy-six".