4618425681 has 27 divisors (see below), whose sum is σ = 6935553001. Its totient is φ = 3075280668.

The previous prime is 4618425673. The next prime is 4618425701. The reversal of 4618425681 is 1865248164.

It is a happy number.

The square root of 4618425681 is 67959.

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

4618425681 is a `hidden beast` number, since 4 + 6 + 1 + 84 + 2 + 568 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (27).

It is not a de Polignac number, because 4618425681 - 2³ = 4618425673 is a prime.

It is a super-3 number, since 3×4618425681³ (a number of 30 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 (4618425611) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5504260 + ... + 5505098.

Almost surely, 2^4618425681 is an apocalyptic number.

4618425681 is the 67959-th square number.

4618425681 is the 33980-th centered octagonal number.

It is an amenable number.

4618425681 is a deficient number, since it is larger than the sum of its proper divisors (2317127320).

4618425681 is an frugal number, since it uses more digits than its factorization.

4618425681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702 (or 842 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The cubic root of 4618425681 is about 1665.3211068046.

The spelling of 4618425681 in words is "four billion, six hundred eighteen million, four hundred twenty-five thousand, six hundred eighty-one".