2163290880969 has 9 divisors (see below), whose sum is σ = 3124759868269. Its totient is φ = 1442190979020.

The previous prime is 2163290880931. The next prime is 2163290880977. The reversal of 2163290880969 is 9690880923612.

The square root of 2163290880969 is 1470813.

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

2163290880969 is a `hidden beast` number, since 216 + 329 + 0 + 8 + 8 + 0 + 96 + 9 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 2163290880969 - 2¹⁹ = 2163290356681 is a prime.

It is a super-2 number, since 2×2163290880969² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2163290880469) 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, 4167304 + ... + 4657574.

Almost surely, 2^{2163290880969} is an apocalyptic number.

2163290880969 is the 1470813-rd square number.

2163290880969 is the 735407-th centered octagonal number.

It is an amenable number.

2163290880969 is a deficient number, since it is larger than the sum of its proper divisors (961468987300).

2163290880969 is an frugal number, since it uses more digits than its factorization.

2163290880969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980548 (or 490274 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 63.

The spelling of 2163290880969 in words is "two trillion, one hundred sixty-three billion, two hundred ninety million, eight hundred eighty thousand, nine hundred sixty-nine".