8195263131169 has 9 divisors (see below), whose sum is σ = 8251063488633. Its totient is φ = 8139837680112.

The previous prime is 8195263131149. The next prime is 8195263131191. The reversal of 8195263131169 is 9611313625918.

The square root of 8195263131169 is 2862737.

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 211880693025 + 7983382438144 = 460305^2 + 2825488^2 .

It is not a de Polignac number, because 8195263131169 - 2²³ = 8195254742561 is a prime.

It is a super-2 number, since 2×8195263131169² (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 (8195263131149) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 426538207 + ... + 426557419.

Almost surely, 2^{8195263131169} is an apocalyptic number.

8195263131169 is the 2862737-th square number.

8195263131169 is the 1431369-th centered octagonal number.

It is an amenable number.

8195263131169 is a deficient number, since it is larger than the sum of its proper divisors (55800357464).

8195263131169 is an frugal number, since it uses more digits than its factorization.

8195263131169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38724 (or 19362 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 55.

The spelling of 8195263131169 in words is "eight trillion, one hundred ninety-five billion, two hundred sixty-three million, one hundred thirty-one thousand, one hundred sixty-nine".