2321849681 has 8 divisors (see below), whose sum is σ = 2467505664. Its totient is φ = 2177202240.

The previous prime is 2321849669. The next prime is 2321849693. The reversal of 2321849681 is 1869481232.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2321849669) and next prime (2321849693).

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

It is not a de Polignac number, because 2321849681 - 2²² = 2317655377 is a prime.

It is a super-2 number, since 2×2321849681² = 10781971882319603522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2321849581) 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, 247385 + ... + 256598.

It is an arithmetic number, because the mean of its divisors is an integer number (308438208).

Almost surely, 2^2321849681 is an apocalyptic number.

It is an amenable number.

2321849681 is a deficient number, since it is larger than the sum of its proper divisors (145655983).

2321849681 is a wasteful number, since it uses less digits than its factorization.

2321849681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504271.

The product of its digits is 165888, while the sum is 44.

The square root of 2321849681 is about 48185.5754453550. The cubic root of 2321849681 is about 1324.1729132318.

The spelling of 2321849681 in words is "two billion, three hundred twenty-one million, eight hundred forty-nine thousand, six hundred eighty-one".