8194266928969 has 27 divisors (see below), whose sum is σ = 9042816987477. Its totient is φ = 7419763296000.

The previous prime is 8194266928961. The next prime is 8194266928987. The reversal of 8194266928969 is 9698296624918.

The square root of 8194266928969 is 2862563.

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

It can be written as a sum of positive squares in 4 ways, for example, as 39312975625 + 8154953953344 = 198275^2 + 2855688^2 .

It is not a de Polignac number, because 8194266928969 - 2³ = 8194266928961 is a prime.

It is a super-2 number, since 2×8194266928969² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8194266928961) 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, 13634387269 + ... + 13634387869.

Almost surely, 2^{8194266928969} is an apocalyptic number.

8194266928969 is the 2862563-rd square number.

8194266928969 is the 1431282-nd centered octagonal number.

It is an amenable number.

8194266928969 is a deficient number, since it is larger than the sum of its proper divisors (848550058508).

8194266928969 is an frugal number, since it uses more digits than its factorization.

8194266928969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090 (or 1045 counting only the distinct ones).

The product of its digits is 1451188224, while the sum is 79.

The spelling of 8194266928969 in words is "eight trillion, one hundred ninety-four billion, two hundred sixty-six million, nine hundred twenty-eight thousand, nine hundred sixty-nine".