6433483681 has 3 divisors (see below), whose sum is σ = 6433563891. Its totient is φ = 6433403472.

The previous prime is 6433483643. The next prime is 6433483687. The reversal of 6433483681 is 1863843346.

The square root of 6433483681 is 80209.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1863843346 = 2 ⋅931921673.

It can be written as a sum of positive squares in only one way, i.e., 442723681 + 5990760000 = 21041^2 + 77400^2 .

It is not a de Polignac number, because 6433483681 - 2¹¹ = 6433481633 is a prime.

It is a super-2 number, since 2×6433483681² = 82779424547386619522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6433483687) 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, 40105 + ... + 120313.

It is an arithmetic number, because the mean of its divisors is an integer number (2144521297).

Almost surely, 2^6433483681 is an apocalyptic number.

6433483681 is the 80209-th square number.

6433483681 is the 40105-th centered octagonal number.

It is an amenable number.

6433483681 is a deficient number, since it is larger than the sum of its proper divisors (80210).

6433483681 is an frugal number, since it uses more digits than its factorization.

6433483681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160418 (or 80209 counting only the distinct ones).

The product of its digits is 995328, while the sum is 46.

The cubic root of 6433483681 is about 1859.8677673174.

The spelling of 6433483681 in words is "six billion, four hundred thirty-three million, four hundred eighty-three thousand, six hundred eighty-one".