4538604781 has 8 divisors (see below), whose sum is σ = 4648105728. Its totient is φ = 4430370000.

The previous prime is 4538604739. The next prime is 4538604797. The reversal of 4538604781 is 1874068354.

It is a happy number.

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 4538604781 - 2⁹ = 4538604269 is a prime.

It is a super-2 number, since 2×4538604781² = 41197866716232115922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4538604701) 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 7 ways as a sum of consecutive naturals, for example, 309285 + ... + 323626.

It is an arithmetic number, because the mean of its divisors is an integer number (581013216).

Almost surely, 2^4538604781 is an apocalyptic number.

It is an amenable number.

4538604781 is a deficient number, since it is larger than the sum of its proper divisors (109500947).

4538604781 is a wasteful number, since it uses less digits than its factorization.

4538604781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633083.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 4538604781 is about 67369.1678811606. The cubic root of 4538604781 is about 1655.6713055697.

The spelling of 4538604781 in words is "four billion, five hundred thirty-eight million, six hundred four thousand, seven hundred eighty-one".