4529478681 has 36 divisors (see below), whose sum is σ = 8096669568. Its totient is φ = 2389169952.

The previous prime is 4529478677. The next prime is 4529478713. The reversal of 4529478681 is 1868749254.

It is a happy number.

It is not a de Polignac number, because 4529478681 - 2² = 4529478677 is a prime.

It is a super-2 number, since 2×4529478681² = 41032354243266999522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4529478581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 202065 + ... + 223358.

It is an arithmetic number, because the mean of its divisors is an integer number (224907488).

Almost surely, 2^4529478681 is an apocalyptic number.

It is an amenable number.

4529478681 is a deficient number, since it is larger than the sum of its proper divisors (3567190887).

4529478681 is a wasteful number, since it uses less digits than its factorization.

4529478681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425462 (or 425446 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 4529478681 is about 67301.4017758917. The cubic root of 4529478681 is about 1654.5608350302.

The spelling of 4529478681 in words is "four billion, five hundred twenty-nine million, four hundred seventy-eight thousand, six hundred eighty-one".