3253891681 has 8 divisors (see below), whose sum is σ = 3446876160. Its totient is φ = 3061082688.

The previous prime is 3253891633. The next prime is 3253891691. The reversal of 3253891681 is 1861983523.

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 3253891681 - 2¹⁵ = 3253858913 is a prime.

It is a super-2 number, since 2×3253891681² = 21175622143362011522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3253891691) 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, 4681 + ... + 80806.

It is an arithmetic number, because the mean of its divisors is an integer number (430859520).

Almost surely, 2^3253891681 is an apocalyptic number.

It is an amenable number.

3253891681 is a deficient number, since it is larger than the sum of its proper divisors (192984479).

3253891681 is a wasteful number, since it uses less digits than its factorization.

3253891681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87743.

The product of its digits is 311040, while the sum is 46.

The square root of 3253891681 is about 57042.8933435183. The cubic root of 3253891681 is about 1481.8390337381.

The spelling of 3253891681 in words is "three billion, two hundred fifty-three million, eight hundred ninety-one thousand, six hundred eighty-one".