2669233681 has 8 divisors (see below), whose sum is σ = 2720627784. Its totient is φ = 2618327040.

The previous prime is 2669233673. The next prime is 2669233717. The reversal of 2669233681 is 1863329662.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 97121025 + 2572112656 = 9855^2 + 50716^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2669233681 - 2³ = 2669233673 is a prime.

It is a super-3 number, since 3×2669233681³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2669233661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110800 + ... + 132721.

It is an arithmetic number, because the mean of its divisors is an integer number (340078473).

Almost surely, 2^2669233681 is an apocalyptic number.

It is an amenable number.

2669233681 is a deficient number, since it is larger than the sum of its proper divisors (51394103).

2669233681 is a wasteful number, since it uses less digits than its factorization.

2669233681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243731.

The product of its digits is 559872, while the sum is 46.

The square root of 2669233681 is about 51664.6269801689. The cubic root of 2669233681 is about 1387.1673730803.

The spelling of 2669233681 in words is "two billion, six hundred sixty-nine million, two hundred thirty-three thousand, six hundred eighty-one".