2179675969 has 3 divisors (see below), whose sum is σ = 2179722657. Its totient is φ = 2179629282.

The previous prime is 2179675963. The next prime is 2179675997. The reversal of 2179675969 is 9695769712.

The square root of 2179675969 is 46687.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a de Polignac number, because none of the positive numbers 2^k-2179675969 is a prime.

It is a super-2 number, since 2×2179675969² = 9501974659672177922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2179675963) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 23344 + ... + 70030.

It is an arithmetic number, because the mean of its divisors is an integer number (726574219).

Almost surely, 2^2179675969 is an apocalyptic number.

2179675969 is the 46687-th square number.

2179675969 is the 23344-th centered octagonal number.

It is an amenable number.

2179675969 is a deficient number, since it is larger than the sum of its proper divisors (46688).

2179675969 is an frugal number, since it uses more digits than its factorization.

2179675969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93374 (or 46687 counting only the distinct ones).

The product of its digits is 12859560, while the sum is 61.

The cubic root of 2179675969 is about 1296.5740105201.

The spelling of 2179675969 in words is "two billion, one hundred seventy-nine million, six hundred seventy-five thousand, nine hundred sixty-nine".