4461037681 has 3 divisors (see below), whose sum is σ = 4461104473. Its totient is φ = 4460970890.

The previous prime is 4461037673. The next prime is 4461037697. The reversal of 4461037681 is 1867301644.

The square root of 4461037681 is 66791.

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

4461037681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 4461037681 - 2³ = 4461037673 is a prime.

It is a super-2 number, since 2×4461037681² = 39801714382603715522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4461037621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 33396 + ... + 100186.

Almost surely, 2^4461037681 is an apocalyptic number.

4461037681 is the 66791-st square number.

4461037681 is the 33396-th centered octagonal number.

It is an amenable number.

4461037681 is a deficient number, since it is larger than the sum of its proper divisors (66792).

4461037681 is an frugal number, since it uses more digits than its factorization.

4461037681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133582 (or 66791 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The cubic root of 4461037681 is about 1646.1849637887.

The spelling of 4461037681 in words is "four billion, four hundred sixty-one million, thirty-seven thousand, six hundred eighty-one".